238773964690 has 16 divisors (see below), whose sum is σ = 436838926680. Its totient is φ = 93943854720.

The previous prime is 238773964679. The next prime is 238773964703. The reversal of 238773964690 is 96469377832.

It can be written as a sum of positive squares in 4 ways, for example, as 75519986481 + 163253978209 = 274809^2 + 404047^2 .

It is a super-2 number, since 2×238773964690² (a number of 24 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 195715755 + ... + 195716974.

Almost surely, 2^238773964690 is an apocalyptic number.

238773964690 is a deficient number, since it is larger than the sum of its proper divisors (198064961990).

238773964690 is a wasteful number, since it uses less digits than its factorization.

238773964690 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 391432797.

The product of its (nonzero) digits is 82301184, while the sum is 64.

The spelling of 238773964690 in words is "two hundred thirty-eight billion, seven hundred seventy-three million, nine hundred sixty-four thousand, six hundred ninety".