386807658891 has 8 divisors (see below), whose sum is σ = 515765577360. Its totient is φ = 257860756512.

The previous prime is 386807658817. The next prime is 386807658911. The reversal of 386807658891 is 198856708683.

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

It is not a de Polignac number, because 386807658891 - 2¹³ = 386807650699 is a prime.

It is a super-2 number, since 2×386807658891² (a number of 24 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (386807658091) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2671740 + ... + 2812793.

It is an arithmetic number, because the mean of its divisors is an integer number (64470697170).

Almost surely, 2^386807658891 is an apocalyptic number.

386807658891 is a deficient number, since it is larger than the sum of its proper divisors (128957918469).

386807658891 is a wasteful number, since it uses less digits than its factorization.

386807658891 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5508045.

The product of its (nonzero) digits is 139345920, while the sum is 69.

The spelling of 386807658891 in words is "three hundred eighty-six billion, eight hundred seven million, six hundred fifty-eight thousand, eight hundred ninety-one".