87469790540 has 24 divisors (see below), whose sum is σ = 200385338832. Its totient is φ = 31807196480.

The previous prime is 87469790539. The next prime is 87469790563. The reversal of 87469790540 is 4509796478.

It is a super-2 number, since 2×87469790540² (a number of 23 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 87469790540.

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, 198794759 + ... + 198795198.

It is an arithmetic number, because the mean of its divisors is an integer number (8349389118).

Almost surely, 2^87469790540 is an apocalyptic number.

It is an amenable number.

87469790540 is an abundant number, since it is smaller than the sum of its proper divisors (112915548292).

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

87469790540 is a wasteful number, since it uses less digits than its factorization.

87469790540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 397589977 (or 397589975 counting only the distinct ones).

The product of its (nonzero) digits is 15240960, while the sum is 59.

The spelling of 87469790540 in words is "eighty-seven billion, four hundred sixty-nine million, seven hundred ninety thousand, five hundred forty".