236097878657 has 4 divisors (see below), whose sum is σ = 246363003840. Its totient is φ = 225832753476.

The previous prime is 236097878651. The next prime is 236097878671. The reversal of 236097878657 is 756878790632.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 236097878657 - 2¹² = 236097874561 is a prime.

It is a super-2 number, since 2×236097878657² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (236097878651) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5132562557 + ... + 5132562602.

It is an arithmetic number, because the mean of its divisors is an integer number (61590750960).

Almost surely, 2^236097878657 is an apocalyptic number.

It is an amenable number.

236097878657 is a deficient number, since it is larger than the sum of its proper divisors (10265125183).

236097878657 is a wasteful number, since it uses less digits than its factorization.

236097878657 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10265125182.

The product of its (nonzero) digits is 213373440, while the sum is 68.

The spelling of 236097878657 in words is "two hundred thirty-six billion, ninety-seven million, eight hundred seventy-eight thousand, six hundred fifty-seven".