87474088820 has 24 divisors (see below), whose sum is σ = 186282851328. Its totient is φ = 34496823200.

The previous prime is 87474088817. The next prime is 87474088861. The reversal of 87474088820 is 2888047478.

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, 30799316 + ... + 30802155.

It is an arithmetic number, because the mean of its divisors is an integer number (7761785472).

Almost surely, 2^87474088820 is an apocalyptic number.

It is an amenable number.

87474088820 is an abundant number, since it is smaller than the sum of its proper divisors (98808762508).

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

87474088820 is a wasteful number, since it uses less digits than its factorization.

87474088820 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 61601551 (or 61601549 counting only the distinct ones).

The product of its (nonzero) digits is 6422528, while the sum is 56.

The spelling of 87474088820 in words is "eighty-seven billion, four hundred seventy-four million, eighty-eight thousand, eight hundred twenty".