1257491932102 has 32 divisors (see below), whose sum is σ = 2202068736000. Its totient is φ = 527414969088.

The previous prime is 1257491932097. The next prime is 1257491932111. The reversal of 1257491932102 is 2012391947521.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3229227 + ... + 3597622.

It is an arithmetic number, because the mean of its divisors is an integer number (68814648000).

Almost surely, 2^{1257491932102} is an apocalyptic number.

1257491932102 is a deficient number, since it is larger than the sum of its proper divisors (944576803898).

1257491932102 is a wasteful number, since it uses less digits than its factorization.

1257491932102 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6827140.

The product of its (nonzero) digits is 272160, while the sum is 46.

The spelling of 1257491932102 in words is "one trillion, two hundred fifty-seven billion, four hundred ninety-one million, nine hundred thirty-two thousand, one hundred two".