87956695040 has 48 divisors (see below), whose sum is σ = 211044555540. Its totient is φ = 35182673920.

The previous prime is 87956695037. The next prime is 87956695049. The reversal of 87956695040 is 4059665978.

It can be written as a sum of positive squares in 2 ways, for example, as 84294992896 + 3661702144 = 290336^2 + 60512^2 .

It is not an unprimeable number, because it can be changed into a prime (87956695049) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4284521 + ... + 4305000.

Almost surely, 2^87956695040 is an apocalyptic number.

87956695040 is a gapful number since it is divisible by the number (80) formed by its first and last digit.

It is an amenable number.

87956695040 is an abundant number, since it is smaller than the sum of its proper divisors (123087860500).

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

87956695040 is an equidigital number, since it uses as much as digits as its factorization.

87956695040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8589548 (or 8589528 counting only the distinct ones).

The product of its (nonzero) digits is 16329600, while the sum is 59.

The spelling of 87956695040 in words is "eighty-seven billion, nine hundred fifty-six million, six hundred ninety-five thousand, forty".