7157157215700 has 72 divisors (see below), whose sum is σ = 20708309909728. Its totient is φ = 1908550523520.

The previous prime is 7157157215657. The next prime is 7157157215701. The reversal of 7157157215700 is 75127517517.

It is a self number, because there is not a number n which added to its sum of digits gives 7157157215700.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7157157215701) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 44392434 + ... + 44553366.

Almost surely, 2^{7157157215700} is an apocalyptic number.

It is an amenable number.

7157157215700 is an abundant number, since it is smaller than the sum of its proper divisors (13551152694028).

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

7157157215700 is a wasteful number, since it uses less digits than its factorization.

7157157215700 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 309193 (or 309186 counting only the distinct ones).

The product of its (nonzero) digits is 600250, while the sum is 48.

The spelling of 7157157215700 in words is "seven trillion, one hundred fifty-seven billion, one hundred fifty-seven million, two hundred fifteen thousand, seven hundred".