921284884084 has 12 divisors (see below), whose sum is σ = 1612294314400. Its totient is φ = 460629365688.

The previous prime is 921284884067. The next prime is 921284884141. The reversal of 921284884084 is 480488482129.

It is a hoax number, since the sum of its digits (58) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3109704 + ... + 3393055.

Almost surely, 2^921284884084 is an apocalyptic number.

It is an amenable number.

921284884084 is a deficient number, since it is larger than the sum of its proper divisors (691009430316).

921284884084 is a wasteful number, since it uses less digits than its factorization.

921284884084 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6538182 (or 6538180 counting only the distinct ones).

The product of its (nonzero) digits is 9437184, while the sum is 58.

The spelling of 921284884084 in words is "nine hundred twenty-one billion, two hundred eighty-four million, eight hundred eighty-four thousand, eighty-four".