9148117651957 has 4 divisors (see below), whose sum is σ = 9148481375980. Its totient is φ = 9147753927936.

The previous prime is 9148117651873. The next prime is 9148117651973. The reversal of 9148117651957 is 7591567118419.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 4717623096081 + 4430494555876 = 2172009^2 + 2104874^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-9148117651957 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9148117654957) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 181824282 + ... + 181874587.

It is an arithmetic number, because the mean of its divisors is an integer number (2287120343995).

Almost surely, 2^{9148117651957} is an apocalyptic number.

It is an amenable number.

9148117651957 is a deficient number, since it is larger than the sum of its proper divisors (363724023).

9148117651957 is a wasteful number, since it uses less digits than its factorization.

9148117651957 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 363724022.

The product of its digits is 19051200, while the sum is 64.

The spelling of 9148117651957 in words is "nine trillion, one hundred forty-eight billion, one hundred seventeen million, six hundred fifty-one thousand, nine hundred fifty-seven".