1345631025972 has 48 divisors (see below), whose sum is σ = 3162620249600. Its totient is φ = 445284920160.

The previous prime is 1345631025971. The next prime is 1345631026081. The reversal of 1345631025972 is 2795201365431.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1345631025971) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 39866679 + ... + 39900417.

Almost surely, 2^{1345631025972} is an apocalyptic number.

1345631025972 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1345631025972 is an abundant number, since it is smaller than the sum of its proper divisors (1816989223628).

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

1345631025972 is a wasteful number, since it uses less digits than its factorization.

1345631025972 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 57796 (or 57794 counting only the distinct ones).

The product of its (nonzero) digits is 1360800, while the sum is 48.

The spelling of 1345631025972 in words is "one trillion, three hundred forty-five billion, six hundred thirty-one million, twenty-five thousand, nine hundred seventy-two".