87942549873 has 16 divisors (see below), whose sum is σ = 125902843776. Its totient is φ = 54402458880.

The previous prime is 87942549859. The next prime is 87942549889. The reversal of 87942549873 is 37894524978.

It is not a de Polignac number, because 87942549873 - 2¹⁷ = 87942418801 is a prime.

It is a super-2 number, since 2×87942549873² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (87942549853) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 12139786 + ... + 12147027.

It is an arithmetic number, because the mean of its divisors is an integer number (7868927736).

Almost surely, 2^87942549873 is an apocalyptic number.

It is an amenable number.

87942549873 is a deficient number, since it is larger than the sum of its proper divisors (37960293903).

87942549873 is a wasteful number, since it uses less digits than its factorization.

87942549873 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24286904.

The product of its digits is 121927680, while the sum is 66.

The spelling of 87942549873 in words is "eighty-seven billion, nine hundred forty-two million, five hundred forty-nine thousand, eight hundred seventy-three".