1251055423344 has 40 divisors (see below), whose sum is σ = 3239795167120. Its totient is φ = 415998862848.

The previous prime is 1251055423283. The next prime is 1251055423349. The reversal of 1251055423344 is 4433245501521.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1251055423349) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 31843027 + ... + 31882290.

It is an arithmetic number, because the mean of its divisors is an integer number (80994879178).

Almost surely, 2^{1251055423344} is an apocalyptic number.

It is an amenable number.

1251055423344 is an abundant number, since it is smaller than the sum of its proper divisors (1988739743776).

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

1251055423344 is a wasteful number, since it uses less digits than its factorization.

1251055423344 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 63725737 (or 63725731 counting only the distinct ones).

The product of its (nonzero) digits is 288000, while the sum is 39.

The spelling of 1251055423344 in words is "one trillion, two hundred fifty-one billion, fifty-five million, four hundred twenty-three thousand, three hundred forty-four".