381315887258 has 32 divisors (see below), whose sum is σ = 576073270080. Its totient is φ = 189298062720.

The previous prime is 381315887243. The next prime is 381315887263. The reversal of 381315887258 is 852788513183.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 381315887197 and 381315887206.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 236400860 + ... + 236402472.

It is an arithmetic number, because the mean of its divisors is an integer number (18002289690).

Almost surely, 2^381315887258 is an apocalyptic number.

381315887258 is a deficient number, since it is larger than the sum of its proper divisors (194757382822).

381315887258 is a wasteful number, since it uses less digits than its factorization.

381315887258 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3182.

The product of its digits is 12902400, while the sum is 59.

The spelling of 381315887258 in words is "three hundred eighty-one billion, three hundred fifteen million, eight hundred eighty-seven thousand, two hundred fifty-eight".