84561834738 has 16 divisors (see below), whose sum is σ = 171161305056. Its totient is φ = 27847672320.

The previous prime is 84561834727. The next prime is 84561834743. The reversal of 84561834738 is 83743816548.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 84900943 + ... + 84901938.

It is an arithmetic number, because the mean of its divisors is an integer number (10697581566).

Almost surely, 2^84561834738 is an apocalyptic number.

84561834738 is an abundant number, since it is smaller than the sum of its proper divisors (86599470318).

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

84561834738 is a wasteful number, since it uses less digits than its factorization.

84561834738 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 169802969.

The product of its digits is 15482880, while the sum is 57.

The spelling of 84561834738 in words is "eighty-four billion, five hundred sixty-one million, eight hundred thirty-four thousand, seven hundred thirty-eight".