399791124494 has 16 divisors (see below), whose sum is σ = 602228482416. Its totient is φ = 199048444800.

The previous prime is 399791124493. The next prime is 399791124547. The reversal of 399791124494 is 494421197993.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (399791124493) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6658829 + ... + 6718599.

It is an arithmetic number, because the mean of its divisors is an integer number (37639280151).

Almost surely, 2^399791124494 is an apocalyptic number.

399791124494 is a deficient number, since it is larger than the sum of its proper divisors (202437357922).

399791124494 is a wasteful number, since it uses less digits than its factorization.

399791124494 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 73891.

The product of its digits is 17635968, while the sum is 62.

The spelling of 399791124494 in words is "three hundred ninety-nine billion, seven hundred ninety-one million, one hundred twenty-four thousand, four hundred ninety-four".