7625957997680 has 80 divisors (see below), whose sum is σ = 19659287983968. Its totient is φ = 2727615360000.

The previous prime is 7625957997677. The next prime is 7625957997703. The reversal of 7625957997680 is 867997595267.

It is a tau number, because it is divible by the number of its divisors (80).

It is a Harshad number since it is a multiple of its sum of digits (80).

It is a junction number, because it is equal to n+sod(n) for n = 7625957997595 and 7625957997604.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 70977971 + ... + 71085330.

Almost surely, 2^{7625957997680} is an apocalyptic number.

It is an amenable number.

7625957997680 is an abundant number, since it is smaller than the sum of its proper divisors (12033329986288).

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

7625957997680 is a wasteful number, since it uses less digits than its factorization.

7625957997680 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 142063386 (or 142063380 counting only the distinct ones).

The product of its (nonzero) digits is 3600676800, while the sum is 80.

The spelling of 7625957997680 in words is "seven trillion, six hundred twenty-five billion, nine hundred fifty-seven million, nine hundred ninety-seven thousand, six hundred eighty".