87407548820 has 12 divisors (see below), whose sum is σ = 183555852564. Its totient is φ = 34963019520.

The previous prime is 87407548783. The next prime is 87407548843. The reversal of 87407548820 is 2884570478.

It can be written as a sum of positive squares in 2 ways, for example, as 53068493956 + 34339054864 = 230366^2 + 185308^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2185188701 + ... + 2185188740.

It is an arithmetic number, because the mean of its divisors is an integer number (15296321047).

Almost surely, 2^87407548820 is an apocalyptic number.

It is an amenable number.

87407548820 is an abundant number, since it is smaller than the sum of its proper divisors (96148303744).

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

87407548820 is a wasteful number, since it uses less digits than its factorization.

87407548820 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4370377450 (or 4370377448 counting only the distinct ones).

The product of its (nonzero) digits is 4014080, while the sum is 53.

The spelling of 87407548820 in words is "eighty-seven billion, four hundred seven million, five hundred forty-eight thousand, eight hundred twenty".