87289452660 has 24 divisors (see below), whose sum is σ = 244410467616. Its totient is φ = 23277187360.

The previous prime is 87289452647. The next prime is 87289452709. The reversal of 87289452660 is 6625498278.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 87289452660.

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, 727412046 + ... + 727412165.

It is an arithmetic number, because the mean of its divisors is an integer number (10183769484).

Almost surely, 2^87289452660 is an apocalyptic number.

It is an amenable number.

87289452660 is an abundant number, since it is smaller than the sum of its proper divisors (157121014956).

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

87289452660 is a wasteful number, since it uses less digits than its factorization.

87289452660 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1454824223 (or 1454824221 counting only the distinct ones).

The product of its (nonzero) digits is 11612160, while the sum is 57.

The spelling of 87289452660 in words is "eighty-seven billion, two hundred eighty-nine million, four hundred fifty-two thousand, six hundred sixty".