87397461728 has 48 divisors (see below), whose sum is σ = 178241122080. Its totient is φ = 42153830400.

The previous prime is 87397461707. The next prime is 87397461731. The reversal of 87397461728 is 82716479378.

It is a congruent number.

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, 257468 + ... + 491003.

It is an arithmetic number, because the mean of its divisors is an integer number (3713356710).

Almost surely, 2^87397461728 is an apocalyptic number.

It is an amenable number.

87397461728 is an abundant number, since it is smaller than the sum of its proper divisors (90843660352).

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

87397461728 is a wasteful number, since it uses less digits than its factorization.

87397461728 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 748611 (or 748603 counting only the distinct ones).

The product of its digits is 28449792, while the sum is 62.

The spelling of 87397461728 in words is "eighty-seven billion, three hundred ninety-seven million, four hundred sixty-one thousand, seven hundred twenty-eight".