238136194413 has 24 divisors (see below), whose sum is σ = 382383572480. Its totient is φ = 141818078880.

The previous prime is 238136194381. The next prime is 238136194421. The reversal of 238136194413 is 314491631832.

238136194413 is a `hidden beast` number, since 2 + 3 + 8 + 13 + 619 + 4 + 4 + 13 = 666.

It is not a de Polignac number, because 238136194413 - 2⁵ = 238136194381 is a prime.

It is a super-2 number, since 2×238136194413² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (238136194433) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 32824633 + ... + 32831886.

Almost surely, 2^238136194413 is an apocalyptic number.

It is an amenable number.

238136194413 is a deficient number, since it is larger than the sum of its proper divisors (144247378067).

238136194413 is a wasteful number, since it uses less digits than its factorization.

238136194413 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 65656569 (or 65656566 counting only the distinct ones).

The product of its digits is 373248, while the sum is 45.

The spelling of 238136194413 in words is "two hundred thirty-eight billion, one hundred thirty-six million, one hundred ninety-four thousand, four hundred thirteen".