386703613821 has 16 divisors (see below), whose sum is σ = 589289814144. Its totient is φ = 220963306944.

The previous prime is 386703613811. The next prime is 386703613837. The reversal of 386703613821 is 128316307683.

It is not a de Polignac number, because 386703613821 - 2⁶ = 386703613757 is a prime.

It is a super-2 number, since 2×386703613821² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (386703613811) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 54511 + ... + 881123.

It is an arithmetic number, because the mean of its divisors is an integer number (36830613384).

Almost surely, 2^386703613821 is an apocalyptic number.

It is an amenable number.

386703613821 is a deficient number, since it is larger than the sum of its proper divisors (202586200323).

386703613821 is a wasteful number, since it uses less digits than its factorization.

386703613821 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 848900.

The product of its (nonzero) digits is 870912, while the sum is 48.

The spelling of 386703613821 in words is "three hundred eighty-six billion, seven hundred three million, six hundred thirteen thousand, eight hundred twenty-one".