87868752465 has 64 divisors (see below), whose sum is σ = 160387589376. Its totient is φ = 40694341632.

The previous prime is 87868752403. The next prime is 87868752509. The reversal of 87868752465 is 56425786878.

It is not a de Polignac number, because 87868752465 - 2⁷ = 87868752337 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 87868752396 and 87868752405.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 8723362 + ... + 8733428.

It is an arithmetic number, because the mean of its divisors is an integer number (2506056084).

Almost surely, 2^87868752465 is an apocalyptic number.

87868752465 is a gapful number since it is divisible by the number (85) formed by its first and last digit.

It is an amenable number.

87868752465 is a deficient number, since it is larger than the sum of its proper divisors (72518836911).

87868752465 is a wasteful number, since it uses less digits than its factorization.

87868752465 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12738.

The product of its digits is 180633600, while the sum is 66.

The spelling of 87868752465 in words is "eighty-seven billion, eight hundred sixty-eight million, seven hundred fifty-two thousand, four hundred sixty-five".