87564461948 has 24 divisors (see below), whose sum is σ = 165054193920. Its totient is φ = 40513299120.

The previous prime is 87564461947. The next prime is 87564461987. The reversal of 87564461948 is 84916446578.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (87564461947) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13393988 + ... + 13400523.

It is an arithmetic number, because the mean of its divisors is an integer number (6877258080).

Almost surely, 2^87564461948 is an apocalyptic number.

It is an amenable number.

87564461948 is a deficient number, since it is larger than the sum of its proper divisors (77489731972).

87564461948 is a wasteful number, since it uses less digits than its factorization.

87564461948 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26794577 (or 26794575 counting only the distinct ones).

The product of its digits is 46448640, while the sum is 62.

The spelling of 87564461948 in words is "eighty-seven billion, five hundred sixty-four million, four hundred sixty-one thousand, nine hundred forty-eight".