87700432896 has 144 divisors (see below), whose sum is σ = 253883038500. Its totient is φ = 29165617152.

The previous prime is 87700432891. The next prime is 87700432901. The reversal of 87700432896 is 69823400778.

It is an interprime number because it is at equal distance from previous prime (87700432891) and next prime (87700432901).

It can be written as a sum of positive squares in 2 ways, for example, as 82447082496 + 5253350400 = 287136^2 + 72480^2 .

It is a tau number, because it is divible by the number of its divisors (144).

It is not an unprimeable number, because it can be changed into a prime (87700432891) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 8270670 + ... + 8281266.

Almost surely, 2^87700432896 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 87700432896, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (126941519250).

87700432896 is an abundant number, since it is smaller than the sum of its proper divisors (166182605604).

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

87700432896 is a wasteful number, since it uses less digits than its factorization.

87700432896 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11074 (or 11051 counting only the distinct ones).

The product of its (nonzero) digits is 4064256, while the sum is 54.

The spelling of 87700432896 in words is "eighty-seven billion, seven hundred million, four hundred thirty-two thousand, eight hundred ninety-six".