84987078948 has 36 divisors (see below), whose sum is σ = 216799362780. Its totient is φ = 28069125696.

The previous prime is 84987078931. The next prime is 84987078961.

84987078948 is nontrivially palindromic in base 10.

It can be written as a sum of positive squares in 2 ways, for example, as 22830605604 + 62156473344 = 151098^2 + 249312^2 .

It is a tau number, because it is divible by the number of its divisors (36).

It is a super-2 number, since 2×84987078948² (a number of 23 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 10825215 + ... + 10833062.

Almost surely, 2^84987078948 is an apocalyptic number.

It is an amenable number.

84987078948 is an abundant number, since it is smaller than the sum of its proper divisors (131812283832).

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

84987078948 is a wasteful number, since it uses less digits than its factorization.

84987078948 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21658396 (or 21658391 counting only the distinct ones).

The product of its (nonzero) digits is 260112384, while the sum is 72.

The spelling of 84987078948 in words is "eighty-four billion, nine hundred eighty-seven million, seventy-eight thousand, nine hundred forty-eight".