1351256564432 has 10 divisors (see below), whose sum is σ = 2618059593618. Its totient is φ = 675628282208.

The previous prime is 1351256564381. The next prime is 1351256564467. The reversal of 1351256564432 is 2344656521531.

It can be written as a sum of positive squares in only one way, i.e., 902431601296 + 448824963136 = 949964^2 + 669944^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 42226767623 + ... + 42226767654.

Almost surely, 2^{1351256564432} is an apocalyptic number.

It is an amenable number.

1351256564432 is a deficient number, since it is larger than the sum of its proper divisors (1266803029186).

1351256564432 is an equidigital number, since it uses as much as digits as its factorization.

1351256564432 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 84453535285 (or 84453535279 counting only the distinct ones).

The product of its digits is 2592000, while the sum is 47.

The spelling of 1351256564432 in words is "one trillion, three hundred fifty-one billion, two hundred fifty-six million, five hundred sixty-four thousand, four hundred thirty-two".