1238652875640 has 64 divisors (see below), whose sum is σ = 3716079444000. Its totient is φ = 330296694272.

The previous prime is 1238652875617. The next prime is 1238652875657. The reversal of 1238652875640 is 465782568321.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3959686 + ... + 4261034.

Almost surely, 2^{1238652875640} is an apocalyptic number.

1238652875640 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1238652875640 is an abundant number, since it is smaller than the sum of its proper divisors (2477426568360).

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

1238652875640 is a wasteful number, since it uses less digits than its factorization.

1238652875640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 335616 (or 335612 counting only the distinct ones).

The product of its (nonzero) digits is 19353600, while the sum is 57.

The spelling of 1238652875640 in words is "one trillion, two hundred thirty-eight billion, six hundred fifty-two million, eight hundred seventy-five thousand, six hundred forty".