386978042881 has 8 divisors (see below), whose sum is σ = 392150844800. Its totient is φ = 381812099760.

The previous prime is 386978042873. The next prime is 386978042911. The reversal of 386978042881 is 188240879683.

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

It is a cyclic number.

It is not a de Polignac number, because 386978042881 - 2³ = 386978042873 is a prime.

It is a super-2 number, since 2×386978042881² (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 (386978042081) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1601055 + ... + 1826836.

It is an arithmetic number, because the mean of its divisors is an integer number (49018855600).

Almost surely, 2^386978042881 is an apocalyptic number.

It is an amenable number.

386978042881 is a deficient number, since it is larger than the sum of its proper divisors (5172801919).

386978042881 is a wasteful number, since it uses less digits than its factorization.

386978042881 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3429399.

The product of its (nonzero) digits is 37158912, while the sum is 64.

The spelling of 386978042881 in words is "three hundred eighty-six billion, nine hundred seventy-eight million, forty-two thousand, eight hundred eighty-one".