84255417568 has 24 divisors (see below), whose sum is σ = 189574690032. Its totient is φ = 36109464576.

The previous prime is 84255417557. The next prime is 84255417601. The reversal of 84255417568 is 86571455248.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 188069905 + ... + 188070352.

It is an arithmetic number, because the mean of its divisors is an integer number (7898945418).

Almost surely, 2^84255417568 is an apocalyptic number.

It is an amenable number.

84255417568 is an abundant number, since it is smaller than the sum of its proper divisors (105319272464).

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

84255417568 is a wasteful number, since it uses less digits than its factorization.

84255417568 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 376140274 (or 376140266 counting only the distinct ones).

The product of its digits is 10752000, while the sum is 55.

The spelling of 84255417568 in words is "eighty-four billion, two hundred fifty-five million, four hundred seventeen thousand, five hundred sixty-eight".