31428860286 has 16 divisors (see below), whose sum is σ = 62905392000. Its totient is φ = 10468341528.

The previous prime is 31428860249. The next prime is 31428860297. The reversal of 31428860286 is 68206882413.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1977736 + ... + 1993563.

It is an arithmetic number, because the mean of its divisors is an integer number (3931587000).

Almost surely, 2^31428860286 is an apocalyptic number.

31428860286 is an abundant number, since it is smaller than the sum of its proper divisors (31476531714).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

31428860286 is a wasteful number, since it uses less digits than its factorization.

31428860286 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3972623.

The product of its (nonzero) digits is 884736, while the sum is 48.

The spelling of 31428860286 in words is "thirty-one billion, four hundred twenty-eight million, eight hundred sixty thousand, two hundred eighty-six".