31428872888854 has 16 divisors (see below), whose sum is σ = 56220592497408. Its totient is φ = 12883885780392.

The previous prime is 31428872888807. The next prime is 31428872888867. The reversal of 31428872888854 is 45888827882413.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 48802597332 + ... + 48802597975.

It is an arithmetic number, because the mean of its divisors is an integer number (3513787031088).

Almost surely, 2^{31428872888854} is an apocalyptic number.

31428872888854 is a deficient number, since it is larger than the sum of its proper divisors (24791719608554).

31428872888854 is a wasteful number, since it uses less digits than its factorization.

31428872888854 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 97605195339.

The product of its digits is 1761607680, while the sum is 76.

The spelling of 31428872888854 in words is "thirty-one trillion, four hundred twenty-eight billion, eight hundred seventy-two million, eight hundred eighty-eight thousand, eight hundred fifty-four".