399476883455 has 16 divisors (see below), whose sum is σ = 516456010560. Its totient is φ = 294878907648.

The previous prime is 399476883437. The next prime is 399476883541. The reversal of 399476883455 is 554388674993.

It is not a de Polignac number, because 399476883455 - 2²⁸ = 399208447999 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1081835 + ... + 1403324.

It is an arithmetic number, because the mean of its divisors is an integer number (32278500660).

Almost surely, 2^399476883455 is an apocalyptic number.

399476883455 is a deficient number, since it is larger than the sum of its proper divisors (116979127105).

399476883455 is a wasteful number, since it uses less digits than its factorization.

399476883455 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2487650.

The product of its digits is 783820800, while the sum is 71.

The spelling of 399476883455 in words is "three hundred ninety-nine billion, four hundred seventy-six million, eight hundred eighty-three thousand, four hundred fifty-five".