238665479396 has 6 divisors (see below), whose sum is σ = 417664588950. Its totient is φ = 119332739696.

The previous prime is 238665479389. The next prime is 238665479443. The reversal of 238665479396 is 693974566832.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 144210062500 + 94455416896 = 379750^2 + 307336^2 .

It is a super-2 number, since 2×238665479396² (a number of 24 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 29833184921 + ... + 29833184928.

It is an arithmetic number, because the mean of its divisors is an integer number (69610764825).

Almost surely, 2^238665479396 is an apocalyptic number.

It is an amenable number.

238665479396 is a deficient number, since it is larger than the sum of its proper divisors (178999109554).

238665479396 is a wasteful number, since it uses less digits than its factorization.

238665479396 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 59666369853 (or 59666369851 counting only the distinct ones).

The product of its digits is 352719360, while the sum is 68.

The spelling of 238665479396 in words is "two hundred thirty-eight billion, six hundred sixty-five million, four hundred seventy-nine thousand, three hundred ninety-six".