87487305464 has 128 divisors (see below), whose sum is σ = 184484321280. Its totient is φ = 38623219200.

The previous prime is 87487305427. The next prime is 87487305491. The reversal of 87487305464 is 46450378478.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 126609359 + ... + 126610049.

It is an arithmetic number, because the mean of its divisors is an integer number (1441283760).

Almost surely, 2^87487305464 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 87487305464, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (92242160640).

87487305464 is an abundant number, since it is smaller than the sum of its proper divisors (96997015816).

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

87487305464 is a wasteful number, since it uses less digits than its factorization.

87487305464 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1141 (or 1137 counting only the distinct ones).

The product of its (nonzero) digits is 18063360, while the sum is 56.

The spelling of 87487305464 in words is "eighty-seven billion, four hundred eighty-seven million, three hundred five thousand, four hundred sixty-four".