87962116865 has 32 divisors (see below), whose sum is σ = 122595717120. Its totient is φ = 59340086784.

The previous prime is 87962116861. The next prime is 87962116889. The reversal of 87962116865 is 56861126978.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 87962116865 - 2² = 87962116861 is a prime.

It is not an unprimeable number, because it can be changed into a prime (87962116861) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 970976 + ... + 1057694.

It is an arithmetic number, because the mean of its divisors is an integer number (3831116160).

Almost surely, 2^87962116865 is an apocalyptic number.

It is an amenable number.

87962116865 is a deficient number, since it is larger than the sum of its proper divisors (34633600255).

87962116865 is a wasteful number, since it uses less digits than its factorization.

87962116865 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 87201.

The product of its digits is 8709120, while the sum is 59.

The spelling of 87962116865 in words is "eighty-seven billion, nine hundred sixty-two million, one hundred sixteen thousand, eight hundred sixty-five".