87279697278 has 48 divisors (see below), whose sum is σ = 189649102032. Its totient is φ = 29009808000.

The previous prime is 87279697247. The next prime is 87279697279.

87279697278 is a `hidden beast` number, since 87 + 279 + 6 + 9 + 7 + 278 = 666.

87279697278 is nontrivially palindromic in base 10.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (87279697279) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 9460708 + ... + 9469928.

It is an arithmetic number, because the mean of its divisors is an integer number (3951022959).

Almost surely, 2^87279697278 is an apocalyptic number.

87279697278 is an abundant number, since it is smaller than the sum of its proper divisors (102369404754).

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

87279697278 is a wasteful number, since it uses less digits than its factorization.

87279697278 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10681 (or 10678 counting only the distinct ones).

The product of its digits is 298722816, while the sum is 72.

The spelling of 87279697278 in words is "eighty-seven billion, two hundred seventy-nine million, six hundred ninety-seven thousand, two hundred seventy-eight".