399786470013 has 32 divisors (see below), whose sum is σ = 618394915840. Its totient is φ = 225001877760.

The previous prime is 399786469997. The next prime is 399786470053. The reversal of 399786470013 is 310074687993.

It is not a de Polignac number, because 399786470013 - 2⁴ = 399786469997 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (399786470053) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 9773718 + ... + 9814536.

It is an arithmetic number, because the mean of its divisors is an integer number (19324841120).

Almost surely, 2^399786470013 is an apocalyptic number.

It is an amenable number.

399786470013 is a deficient number, since it is larger than the sum of its proper divisors (218608445827).

399786470013 is a wasteful number, since it uses less digits than its factorization.

399786470013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47857.

The product of its (nonzero) digits is 6858432, while the sum is 57.

The spelling of 399786470013 in words is "three hundred ninety-nine billion, seven hundred eighty-six million, four hundred seventy thousand, thirteen".