84020642488684 has 12 divisors (see below), whose sum is σ = 160403044751208. Its totient is φ = 38191201131200.

The previous prime is 84020642488663. The next prime is 84020642488729. The reversal of 84020642488684 is 48688424602048.

It is a super-2 number, since 2×84020642488684² (a number of 29 digits) contains 22 as substring.

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, 954780028237 + ... + 954780028324.

It is an arithmetic number, because the mean of its divisors is an integer number (13366920395934).

Almost surely, 2^{84020642488684} is an apocalyptic number.

It is an amenable number.

84020642488684 is a deficient number, since it is larger than the sum of its proper divisors (76382402262524).

84020642488684 is a wasteful number, since it uses less digits than its factorization.

84020642488684 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1909560056576 (or 1909560056574 counting only the distinct ones).

The product of its (nonzero) digits is 150994944, while the sum is 64.

The spelling of 84020642488684 in words is "eighty-four trillion, twenty billion, six hundred forty-two million, four hundred eighty-eight thousand, six hundred eighty-four".