383138263506 has 8 divisors (see below), whose sum is σ = 766276527024. Its totient is φ = 127712754500.

The previous prime is 383138263489. The next prime is 383138263537. The reversal of 383138263506 is 605362831383.

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

383138263506 is an admirable number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 31928188620 + ... + 31928188631.

It is an arithmetic number, because the mean of its divisors is an integer number (95784565878).

Almost surely, 2^383138263506 is an apocalyptic number.

383138263506 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

383138263506 is a wasteful number, since it uses less digits than its factorization.

383138263506 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 63856377256.

The product of its (nonzero) digits is 1866240, while the sum is 48.

The spelling of 383138263506 in words is "three hundred eighty-three billion, one hundred thirty-eight million, two hundred sixty-three thousand, five hundred six".