84217750680 has 128 divisors (see below), whose sum is σ = 295789294080. Its totient is φ = 18780257280.

The previous prime is 84217750657. The next prime is 84217750697. The reversal of 84217750680 is 8605771248.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1188234 + ... + 1257113.

It is an arithmetic number, because the mean of its divisors is an integer number (2310853860).

Almost surely, 2^84217750680 is an apocalyptic number.

It is an amenable number.

84217750680 is an abundant number, since it is smaller than the sum of its proper divisors (211571543400).

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

84217750680 is a wasteful number, since it uses less digits than its factorization.

84217750680 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2445409 (or 2445405 counting only the distinct ones).

The product of its (nonzero) digits is 752640, while the sum is 48.

The spelling of 84217750680 in words is "eighty-four billion, two hundred seventeen million, seven hundred fifty thousand, six hundred eighty".