7620572157 has 8 divisors (see below), whose sum is σ = 11084468640. Its totient is φ = 4618528560.

The previous prime is 7620572153. The next prime is 7620572171. The reversal of 7620572157 is 7512750267.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 7620572157 - 2² = 7620572153 is a prime.

It is a Smith number, since the sum of its digits (42) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7620572153) 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, 115463182 + ... + 115463247.

It is an arithmetic number, because the mean of its divisors is an integer number (1385558580).

Almost surely, 2^7620572157 is an apocalyptic number.

It is an amenable number.

7620572157 is a deficient number, since it is larger than the sum of its proper divisors (3463896483).

7620572157 is a wasteful number, since it uses less digits than its factorization.

7620572157 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 230926443.

The product of its (nonzero) digits is 205800, while the sum is 42.

The square root of 7620572157 is about 87295.8885457958. Note that the first 3 decimals coincide. The cubic root of 7620572157 is about 1967.8675299884.

The spelling of 7620572157 in words is "seven billion, six hundred twenty million, five hundred seventy-two thousand, one hundred fifty-seven".