84639701484 has 216 divisors, whose sum is σ = 240374730960. Its totient is φ = 25070363136.

The previous prime is 84639701479. The next prime is 84639701519. The reversal of 84639701484 is 48410793648.

84639701484 is a `hidden beast` number, since 8 + 463 + 97 + 0 + 14 + 84 = 666.

It is a self number, because there is not a number n which added to its sum of digits gives 84639701484.

It is an unprimeable number.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 96510054 + ... + 96510930.

Almost surely, 2^84639701484 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 84639701484, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (120187365480).

84639701484 is an abundant number, since it is smaller than the sum of its proper divisors (155735029476).

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

84639701484 is a wasteful number, since it uses less digits than its factorization.

84639701484 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1489 (or 1471 counting only the distinct ones).

The product of its (nonzero) digits is 4644864, while the sum is 54.

The spelling of 84639701484 in words is "eighty-four billion, six hundred thirty-nine million, seven hundred one thousand, four hundred eighty-four".