87402278888 has 8 divisors (see below), whose sum is σ = 163879272930. Its totient is φ = 43701139440.

The previous prime is 87402278869. The next prime is 87402278903. The reversal of 87402278888 is 88887220478.

It can be written as a sum of positive squares in only one way, i.e., 87319068004 + 83210884 = 295498^2 + 9122^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is a self number, because there is not a number n which added to its sum of digits gives 87402278888.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5462642423 + ... + 5462642438.

Almost surely, 2^87402278888 is an apocalyptic number.

It is an amenable number.

87402278888 is a deficient number, since it is larger than the sum of its proper divisors (76476994042).

87402278888 is a wasteful number, since it uses less digits than its factorization.

87402278888 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10925284867 (or 10925284863 counting only the distinct ones).

The product of its (nonzero) digits is 25690112, while the sum is 62.

The spelling of 87402278888 in words is "eighty-seven billion, four hundred two million, two hundred seventy-eight thousand, eight hundred eighty-eight".