87309367873 has 32 divisors (see below), whose sum is σ = 113887904256. Its totient is φ = 64954027008.

The previous prime is 87309367843. The next prime is 87309367883. The reversal of 87309367873 is 37876390378.

It is not a de Polignac number, because 87309367873 - 2²⁹ = 86772496961 is a prime.

It is not an unprimeable number, because it can be changed into a prime (87309367813) 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, 1617915 + ... + 1671007.

It is an arithmetic number, because the mean of its divisors is an integer number (3558997008).

Almost surely, 2^87309367873 is an apocalyptic number.

It is an amenable number.

87309367873 is a deficient number, since it is larger than the sum of its proper divisors (26578536383).

87309367873 is a wasteful number, since it uses less digits than its factorization.

87309367873 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 54193.

The product of its (nonzero) digits is 32006016, while the sum is 61.

The spelling of 87309367873 in words is "eighty-seven billion, three hundred nine million, three hundred sixty-seven thousand, eight hundred seventy-three".