386213862490 has 8 divisors (see below), whose sum is σ = 695184952500. Its totient is φ = 154485544992.

The previous prime is 386213862479. The next prime is 386213862511. The reversal of 386213862490 is 94268312683.

It can be written as a sum of positive squares in 2 ways, for example, as 331489214001 + 54724648489 = 575751^2 + 233933^2 .

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

It is a super-2 number, since 2×386213862490² (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 3 ways as a sum of consecutive naturals, for example, 19310693115 + ... + 19310693134.

Almost surely, 2^386213862490 is an apocalyptic number.

386213862490 is a deficient number, since it is larger than the sum of its proper divisors (308971090010).

386213862490 is a wasteful number, since it uses less digits than its factorization.

386213862490 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38621386256.

The product of its (nonzero) digits is 2985984, while the sum is 52.

The spelling of 386213862490 in words is "three hundred eighty-six billion, two hundred thirteen million, eight hundred sixty-two thousand, four hundred ninety".