1257007351412 has 24 divisors (see below), whose sum is σ = 2235911913312. Its totient is φ = 618176181600.

The previous prime is 1257007351399. The next prime is 1257007351423. The reversal of 1257007351412 is 2141537007521.

It is a super-2 number, since 2×1257007351412² (a number of 25 digits) contains 22 as substring.

It is a Smith number, since the sum of its digits (38) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7256603 + ... + 7427805.

It is an arithmetic number, because the mean of its divisors is an integer number (93162996388).

Almost surely, 2^{1257007351412} is an apocalyptic number.

It is an amenable number.

1257007351412 is a deficient number, since it is larger than the sum of its proper divisors (978904561900).

1257007351412 is a wasteful number, since it uses less digits than its factorization.

1257007351412 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 201359 (or 201357 counting only the distinct ones).

The product of its (nonzero) digits is 58800, while the sum is 38.

The spelling of 1257007351412 in words is "one trillion, two hundred fifty-seven billion, seven million, three hundred fifty-one thousand, four hundred twelve".