403402986855 has 32 divisors (see below), whose sum is σ = 782357310720. Its totient is φ = 195589326240.

The previous prime is 403402986827. The next prime is 403402986913. The reversal of 403402986855 is 558689204304.

403402986855 is a `hidden beast` number, since 4 + 0 + 340 + 298 + 6 + 8 + 5 + 5 = 666.

It is not a de Polignac number, because 403402986855 - 2⁵ = 403402986823 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 135824437 + ... + 135827406.

It is an arithmetic number, because the mean of its divisors is an integer number (24448665960).

Almost surely, 2^403402986855 is an apocalyptic number.

403402986855 is a gapful number since it is divisible by the number (45) formed by its first and last digit.

403402986855 is a deficient number, since it is larger than the sum of its proper divisors (378954323865).

403402986855 is a wasteful number, since it uses less digits than its factorization.

403402986855 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 271651868 (or 271651862 counting only the distinct ones).

The product of its (nonzero) digits is 8294400, while the sum is 54.

The spelling of 403402986855 in words is "four hundred three billion, four hundred two million, nine hundred eighty-six thousand, eight hundred fifty-five".