87485458478 has 48 divisors (see below), whose sum is σ = 154014715008. Its totient is φ = 37152469200.

The previous prime is 87485458469. The next prime is 87485458481.

87485458478 is nontrivially palindromic in base 10.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 56573 + ... + 422103.

It is an arithmetic number, because the mean of its divisors is an integer number (3208639896).

Almost surely, 2^87485458478 is an apocalyptic number.

87485458478 is a deficient number, since it is larger than the sum of its proper divisors (66529256530).

87485458478 is a wasteful number, since it uses less digits than its factorization.

87485458478 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 365621 (or 365610 counting only the distinct ones).

The product of its digits is 321126400, while the sum is 68.

The spelling of 87485458478 in words is "eighty-seven billion, four hundred eighty-five million, four hundred fifty-eight thousand, four hundred seventy-eight".