1242672071670 has 48 divisors (see below), whose sum is σ = 3231079684560. Its totient is φ = 331365650112.

The previous prime is 1242672071611. The next prime is 1242672071671. The reversal of 1242672071670 is 761702762421.

1242672071670 is a `hidden beast` number, since 1 + 2 + 426 + 7 + 207 + 16 + 7 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1242672071671) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2032212 + ... + 2572008.

It is an arithmetic number, because the mean of its divisors is an integer number (67314160095).

Almost surely, 2^{1242672071670} is an apocalyptic number.

1242672071670 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1242672071670 is an abundant number, since it is smaller than the sum of its proper divisors (1988407612890).

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

1242672071670 is a wasteful number, since it uses less digits than its factorization.

1242672071670 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 565389 (or 565386 counting only the distinct ones).

The product of its (nonzero) digits is 395136, while the sum is 45.

The spelling of 1242672071670 in words is "one trillion, two hundred forty-two billion, six hundred seventy-two million, seventy-one thousand, six hundred seventy".