87564461958 has 12 divisors (see below), whose sum is σ = 189723000948. Its totient is φ = 29188153980.

The previous prime is 87564461947. The next prime is 87564461987. The reversal of 87564461958 is 85916446578.

87564461958 is a `hidden beast` number, since 8 + 7 + 5 + 6 + 4 + 4 + 619 + 5 + 8 = 666.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 87564461895 and 87564461904.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2432346148 + ... + 2432346183.

It is an arithmetic number, because the mean of its divisors is an integer number (15810250079).

Almost surely, 2^87564461958 is an apocalyptic number.

87564461958 is an abundant number, since it is smaller than the sum of its proper divisors (102158538990).

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

87564461958 is a wasteful number, since it uses less digits than its factorization.

87564461958 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4864692339 (or 4864692336 counting only the distinct ones).

The product of its digits is 58060800, while the sum is 63.

The spelling of 87564461958 in words is "eighty-seven billion, five hundred sixty-four million, four hundred sixty-one thousand, nine hundred fifty-eight".