98815957157 has 8 divisors (see below), whose sum is σ = 99463725816. Its totient is φ = 98168421312.

The previous prime is 98815957153. The next prime is 98815957159. The reversal of 98815957157 is 75175951889.

It can be written as a sum of positive squares in 4 ways, for example, as 4020320836 + 94795636321 = 63406^2 + 307889^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 98815957157 - 2² = 98815957153 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 98815957093 and 98815957102.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (98815957153) 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, 838523 + ... + 949079.

It is an arithmetic number, because the mean of its divisors is an integer number (12432965727).

Almost surely, 2^98815957157 is an apocalyptic number.

It is an amenable number.

98815957157 is a deficient number, since it is larger than the sum of its proper divisors (647768659).

98815957157 is a wasteful number, since it uses less digits than its factorization.

98815957157 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 116407.

The product of its digits is 31752000, while the sum is 65.

The spelling of 98815957157 in words is "ninety-eight billion, eight hundred fifteen million, nine hundred fifty-seven thousand, one hundred fifty-seven".