87089298078 has 16 divisors (see below), whose sum is σ = 175903137936. Its totient is φ = 28742342400.

The previous prime is 87089298053. The next prime is 87089298091.

87089298078 is nontrivially palindromic in base 10.

It is a congruent number.

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, 71855251 + ... + 71856462.

It is an arithmetic number, because the mean of its divisors is an integer number (10993946121).

Almost surely, 2^87089298078 is an apocalyptic number.

87089298078 is an abundant number, since it is smaller than the sum of its proper divisors (88813839858).

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

87089298078 is a wasteful number, since it uses less digits than its factorization.

87089298078 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 143711819.

The product of its (nonzero) digits is 32514048, while the sum is 66.

The spelling of 87089298078 in words is "eighty-seven billion, eighty-nine million, two hundred ninety-eight thousand, seventy-eight".