8767521464 has 64 divisors (see below), whose sum is σ = 18182435040. Its totient is φ = 3937812480.

The previous prime is 8767521461. The next prime is 8767521473. The reversal of 8767521464 is 4641257678.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8767521461) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1253144 + ... + 1260120.

Almost surely, 2^8767521464 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 8767521464, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (9091217520).

8767521464 is an abundant number, since it is smaller than the sum of its proper divisors (9414913576).

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

8767521464 is a wasteful number, since it uses less digits than its factorization.

8767521464 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7320 (or 7316 counting only the distinct ones).

The product of its digits is 2257920, while the sum is 50.

The square root of 8767521464 is about 93635.0439952906. The cubic root of 8767521464 is about 2062.0171795402.

The spelling of 8767521464 in words is "eight billion, seven hundred sixty-seven million, five hundred twenty-one thousand, four hundred sixty-four".