84621042772 has 12 divisors (see below), whose sum is σ = 169242085600. Its totient is φ = 36266161176.

The previous prime is 84621042763. The next prime is 84621042773. The reversal of 84621042772 is 27724012648.

84621042772 is an admirable number.

It is a hoax number, since the sum of its digits (43) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (84621042773) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1511090022 + ... + 1511090077.

Almost surely, 2^84621042772 is an apocalyptic number.

It is an amenable number.

84621042772 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

84621042772 is a wasteful number, since it uses less digits than its factorization.

84621042772 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3022180110 (or 3022180108 counting only the distinct ones).

The product of its (nonzero) digits is 301056, while the sum is 43.

The spelling of 84621042772 in words is "eighty-four billion, six hundred twenty-one million, forty-two thousand, seven hundred seventy-two".