87440004360 has 256 divisors, whose sum is σ = 305344857600. Its totient is φ = 22215131136.

The previous prime is 87440004349. The next prime is 87440004361. The reversal of 87440004360 is 6340004478.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (87440004361) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 6377032 + ... + 6390728.

It is an arithmetic number, because the mean of its divisors is an integer number (1192753350).

Almost surely, 2^87440004360 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 87440004360, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (152672428800).

87440004360 is an abundant number, since it is smaller than the sum of its proper divisors (217904853240).

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

87440004360 is a wasteful number, since it uses less digits than its factorization.

87440004360 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13997 (or 13987 counting only the distinct ones).

The product of its (nonzero) digits is 64512, while the sum is 36.

The spelling of 87440004360 in words is "eighty-seven billion, four hundred forty million, four thousand, three hundred sixty".