87225652278 has 32 divisors (see below), whose sum is σ = 195613096800. Its totient is φ = 28808470368.

The previous prime is 87225652147. The next prime is 87225652303.

87225652278 is a `hidden beast` number, since 8 + 7 + 2 + 2 + 565 + 2 + 2 + 78 = 666.

87225652278 is nontrivially palindromic in base 10.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7403701 + ... + 7415472.

It is an arithmetic number, because the mean of its divisors is an integer number (6112909275).

Almost surely, 2^87225652278 is an apocalyptic number.

87225652278 is an abundant number, since it is smaller than the sum of its proper divisors (108387444522).

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

87225652278 is a wasteful number, since it uses less digits than its factorization.

87225652278 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14819293 (or 14819287 counting only the distinct ones).

The product of its digits is 7526400, while the sum is 54.

The spelling of 87225652278 in words is "eighty-seven billion, two hundred twenty-five million, six hundred fifty-two thousand, two hundred seventy-eight".