1625134764736 has 56 divisors (see below), whose sum is σ = 3685696805376. Its totient is φ = 696463023360.

The previous prime is 1625134764647. The next prime is 1625134764793. The reversal of 1625134764736 is 6374674315261.

It is a tau number, because it is divible by the number of its divisors (56).

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 7 ways as a sum of consecutive naturals, for example, 23813415 + ... + 23881561.

Almost surely, 2^{1625134764736} is an apocalyptic number.

1625134764736 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

1625134764736 is an abundant number, since it is smaller than the sum of its proper divisors (2060562040640).

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

1625134764736 is an equidigital number, since it uses as much as digits as its factorization.

1625134764736 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 121397 (or 121387 counting only the distinct ones).

The product of its digits is 15240960, while the sum is 55.

The spelling of 1625134764736 in words is "one trillion, six hundred twenty-five billion, one hundred thirty-four million, seven hundred sixty-four thousand, seven hundred thirty-six".