9198077157 has 12 divisors (see below), whose sum is σ = 13287174784. Its totient is φ = 6131560680.

The previous prime is 9198077087. The next prime is 9198077179. The reversal of 9198077157 is 7517708919.

It is not a de Polignac number, because 9198077157 - 2¹⁰ = 9198076133 is a prime.

It is a super-2 number, since 2×9198077157² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9198277157) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 105318 + ... + 171720.

Almost surely, 2^9198077157 is an apocalyptic number.

It is an amenable number.

9198077157 is a deficient number, since it is larger than the sum of its proper divisors (4089097627).

9198077157 is a wasteful number, since it uses less digits than its factorization.

9198077157 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 81800 (or 81797 counting only the distinct ones).

The product of its (nonzero) digits is 1111320, while the sum is 54.

The square root of 9198077157 is about 95906.6064304227. The cubic root of 9198077157 is about 2095.2331148296.

The spelling of 9198077157 in words is "nine billion, one hundred ninety-eight million, seventy-seven thousand, one hundred fifty-seven".