379434866785921 has 16 divisors (see below), whose sum is σ = 401357651362560. Its totient is φ = 357964263740160.

The previous prime is 379434866785867. The next prime is 379434866785957. The reversal of 379434866785921 is 129587668434973.

It is a cyclic number.

It is not a de Polignac number, because 379434866785921 - 2⁹ = 379434866785409 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (379434866788921) 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, 491697460 + ... + 492468538.

It is an arithmetic number, because the mean of its divisors is an integer number (25084853210160).

Almost surely, 2^{379434866785921} is an apocalyptic number.

It is an amenable number.

379434866785921 is a deficient number, since it is larger than the sum of its proper divisors (21922784576639).

379434866785921 is a wasteful number, since it uses less digits than its factorization.

379434866785921 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1064256.

The product of its digits is 13168189440, while the sum is 82.

The spelling of 379434866785921 in words is "three hundred seventy-nine trillion, four hundred thirty-four billion, eight hundred sixty-six million, seven hundred eighty-five thousand, nine hundred twenty-one".