386977398851 has 4 divisors (see below), whose sum is σ = 409740775272. Its totient is φ = 364214022432.

The previous prime is 386977398803. The next prime is 386977398853. The reversal of 386977398851 is 158893779683.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 158893779683 = 179923 ⋅883121.

It is a cyclic number.

It is not a de Polignac number, because 386977398851 - 2¹⁰ = 386977397827 is a prime.

It is a super-2 number, since 2×386977398851² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (386977398853) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11381688185 + ... + 11381688218.

It is an arithmetic number, because the mean of its divisors is an integer number (102435193818).

Almost surely, 2^386977398851 is an apocalyptic number.

386977398851 is a deficient number, since it is larger than the sum of its proper divisors (22763376421).

386977398851 is a wasteful number, since it uses less digits than its factorization.

386977398851 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22763376420.

The product of its digits is 548674560, while the sum is 74.

The spelling of 386977398851 in words is "three hundred eighty-six billion, nine hundred seventy-seven million, three hundred ninety-eight thousand, eight hundred fifty-one".