87972180463 has 16 divisors (see below), whose sum is σ = 93289302016. Its totient is φ = 82811250720.

The previous prime is 87972180403. The next prime is 87972180469. The reversal of 87972180463 is 36408127978.

It is a cyclic number.

It is not a de Polignac number, because 87972180463 - 2²⁵ = 87938626031 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (87972180469) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5615920 + ... + 5631562.

It is an arithmetic number, because the mean of its divisors is an integer number (5830581376).

Almost surely, 2^87972180463 is an apocalyptic number.

87972180463 is a deficient number, since it is larger than the sum of its proper divisors (5317121553).

87972180463 is a wasteful number, since it uses less digits than its factorization.

87972180463 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20614.

The product of its (nonzero) digits is 4064256, while the sum is 55.

The spelling of 87972180463 in words is "eighty-seven billion, nine hundred seventy-two million, one hundred eighty thousand, four hundred sixty-three".