31420836285 has 16 divisors (see below), whose sum is σ = 50276358720. Its totient is φ = 16756772480.

The previous prime is 31420836247. The next prime is 31420836299. The reversal of 31420836285 is 58263802413.

It is not a de Polignac number, because 31420836285 - 2⁷ = 31420836157 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, 243025 + ... + 349145.

It is an arithmetic number, because the mean of its divisors is an integer number (3142272420).

Almost surely, 2^31420836285 is an apocalyptic number.

It is an amenable number.

31420836285 is a deficient number, since it is larger than the sum of its proper divisors (18855522435).

31420836285 is a wasteful number, since it uses less digits than its factorization.

31420836285 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 125868.

The product of its (nonzero) digits is 276480, while the sum is 42.

The spelling of 31420836285 in words is "thirty-one billion, four hundred twenty million, eight hundred thirty-six thousand, two hundred eighty-five".