386867050505 has 24 divisors (see below), whose sum is σ = 502918499160. Its totient is φ = 285561269760.

The previous prime is 386867050469. The next prime is 386867050517. The reversal of 386867050505 is 505050768683.

It can be written as a sum of positive squares in 12 ways, for example, as 37005447424 + 349861603081 = 192368^2 + 591491^2 .

It is not a de Polignac number, because 386867050505 - 2³² = 382572083209 is a prime.

It is a super-2 number, since 2×386867050505² (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 23 ways as a sum of consecutive naturals, for example, 1851965 + ... + 2050245.

It is an arithmetic number, because the mean of its divisors is an integer number (20954937465).

Almost surely, 2^386867050505 is an apocalyptic number.

It is an amenable number.

386867050505 is a deficient number, since it is larger than the sum of its proper divisors (116051448655).

386867050505 is a wasteful number, since it uses less digits than its factorization.

386867050505 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 200621 (or 200608 counting only the distinct ones).

The product of its (nonzero) digits is 6048000, while the sum is 53.

The spelling of 386867050505 in words is "three hundred eighty-six billion, eight hundred sixty-seven million, fifty thousand, five hundred five".