84215056992 has 48 divisors (see below), whose sum is σ = 241161302592. Its totient is φ = 25519713920.

The previous prime is 84215056987. The next prime is 84215056993. The reversal of 84215056992 is 29965051248.

It is a tau number, because it is divible by the number of its divisors (48).

It is a hoax number, since the sum of its digits (51) 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 (84215056993) 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 7 ways as a sum of consecutive naturals, for example, 39873498 + ... + 39875609.

It is an arithmetic number, because the mean of its divisors is an integer number (5024193804).

Almost surely, 2^84215056992 is an apocalyptic number.

It is an amenable number.

84215056992 is an abundant number, since it is smaller than the sum of its proper divisors (156946245600).

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

84215056992 is a wasteful number, since it uses less digits than its factorization.

84215056992 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 79749131 (or 79749123 counting only the distinct ones).

The product of its (nonzero) digits is 1555200, while the sum is 51.

The spelling of 84215056992 in words is "eighty-four billion, two hundred fifteen million, fifty-six thousand, nine hundred ninety-two".