84630778624 has 36 divisors (see below), whose sum is σ = 193063967824. Its totient is φ = 36270332928.

The previous prime is 84630778621. The next prime is 84630778657. The reversal of 84630778624 is 42687703648.

It is a hoax number, since the sum of its digits (55) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (84630778621) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 23611707 + ... + 23615290.

Almost surely, 2^84630778624 is an apocalyptic number.

It is an amenable number.

84630778624 is an abundant number, since it is smaller than the sum of its proper divisors (108433189200).

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

84630778624 is an equidigital number, since it uses as much as digits as its factorization.

84630778624 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 47227020 (or 47227006 counting only the distinct ones).

The product of its (nonzero) digits is 10838016, while the sum is 55.

The spelling of 84630778624 in words is "eighty-four billion, six hundred thirty million, seven hundred seventy-eight thousand, six hundred twenty-four".