84938643648 has 84 divisors (see below), whose sum is σ = 248641392480. Its totient is φ = 27710470656.

The previous prime is 84938643637. The next prime is 84938643649. The reversal of 84938643648 is 84634683948.

84938643648 is a `hidden beast` number, since 8 + 493 + 86 + 4 + 3 + 64 + 8 = 666.

It is a nude number because it is divisible by every one of its digits.

It is not an unprimeable number, because it can be changed into a prime (84938643649) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1541683 + ... + 1595826.

Almost surely, 2^84938643648 is an apocalyptic number.

It is an amenable number.

84938643648 is an abundant number, since it is smaller than the sum of its proper divisors (163702748832).

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

84938643648 is a wasteful number, since it uses less digits than its factorization.

84938643648 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3137574 (or 3137561 counting only the distinct ones).

The product of its digits is 95551488, while the sum is 63.

The spelling of 84938643648 in words is "eighty-four billion, nine hundred thirty-eight million, six hundred forty-three thousand, six hundred forty-eight".