69623481312 has 864 divisors, whose sum is σ = 266699526912. Its totient is φ = 17500665600.

The previous prime is 69623481311. The next prime is 69623481359. The reversal of 69623481312 is 21318432696.

69623481312 is a `hidden beast` number, since 6 + 9 + 623 + 4 + 8 + 1 + 3 + 12 = 666.

It is a tau number, because it is divible by the number of its divisors (864).

It is a nude number because it is divisible by every one of its digits.

Its product of digits (373248) is a multiple of the sum of its prime divisors (54).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (69623481311) by changing a digit.

It is a polite number, since it can be written in 143 ways as a sum of consecutive naturals, for example, 2245918737 + ... + 2245918767.

It is an arithmetic number, because the mean of its divisors is an integer number (308680008).

Almost surely, 2^69623481312 is an apocalyptic number.

69623481312 is a gapful number since it is divisible by the number (62) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 69623481312, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (133349763456).

69623481312 is an abundant number, since it is smaller than the sum of its proper divisors (197076045600).

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

69623481312 is an equidigital number, since it uses as much as digits as its factorization.

69623481312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 127 (or 54 counting only the distinct ones).

The product of its digits is 373248, while the sum is 45.

The spelling of 69623481312 in words is "sixty-nine billion, six hundred twenty-three million, four hundred eighty-one thousand, three hundred twelve".