12423647765970 has 192 divisors, whose sum is σ = 37821878954496. Its totient is φ = 2770026716160.

The previous prime is 12423647765953. The next prime is 12423647766041. The reversal of 12423647765970 is 7956774632421.

12423647765970 is a `hidden beast` number, since 1 + 2 + 4 + 2 + 36 + 4 + 7 + 7 + 6 + 597 + 0 = 666.

12423647765970 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (63).

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 12423647765898 and 12423647765907.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 199298947 + ... + 199361273.

It is an arithmetic number, because the mean of its divisors is an integer number (196988952888).

Almost surely, 2^{12423647765970} is an apocalyptic number.

12423647765970 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 12423647765970, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (18910939477248).

12423647765970 is an abundant number, since it is smaller than the sum of its proper divisors (25398231188526).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12423647765970 is a wasteful number, since it uses less digits than its factorization.

12423647765970 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 70105 (or 70102 counting only the distinct ones).

The product of its (nonzero) digits is 106686720, while the sum is 63.

The spelling of 12423647765970 in words is "twelve trillion, four hundred twenty-three billion, six hundred forty-seven million, seven hundred sixty-five thousand, nine hundred seventy".