8973157557 has 16 divisors (see below), whose sum is σ = 14725182080. Its totient is φ = 4733093952.

The previous prime is 8973157517. The next prime is 8973157561. The reversal of 8973157557 is 7557513798.

8973157557 is digitally balanced in base 2 and base 3, because in such bases it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 8973157557 - 2⁸ = 8973157301 is a prime.

It is a Smith number, since the sum of its digits (57) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a junction number, because it is equal to n+sod(n) for n = 8973157497 and 8973157506.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8973157507) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 16434082 + ... + 16434627.

It is an arithmetic number, because the mean of its divisors is an integer number (920323880).

Almost surely, 2^8973157557 is an apocalyptic number.

It is an amenable number.

8973157557 is a deficient number, since it is larger than the sum of its proper divisors (5752024523).

8973157557 is a wasteful number, since it uses less digits than its factorization.

8973157557 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32868732.

The product of its digits is 9261000, while the sum is 57.

The square root of 8973157557 is about 94726.7520661402. The cubic root of 8973157557 is about 2078.0138181510.

The spelling of 8973157557 in words is "eight billion, nine hundred seventy-three million, one hundred fifty-seven thousand, five hundred fifty-seven".