7872695886 has 32 divisors (see below), whose sum is σ = 18187193088. Its totient is φ = 2245331840.

The previous prime is 7872695881. The next prime is 7872695933. The reversal of 7872695886 is 6885962787.

It is a Harshad number since it is a multiple of its sum of digits (66).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7872695881) 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, 3507210 + ... + 3509453.

It is an arithmetic number, because the mean of its divisors is an integer number (568349784).

Almost surely, 2^7872695886 is an apocalyptic number.

7872695886 is an abundant number, since it is smaller than the sum of its proper divisors (10314497202).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

7872695886 is a wasteful number, since it uses less digits than its factorization.

7872695886 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7016696.

The product of its digits is 81285120, while the sum is 66.

The square root of 7872695886 is about 88728.2135850824. The cubic root of 7872695886 is about 1989.3345490122.

The spelling of 7872695886 in words is "seven billion, eight hundred seventy-two million, six hundred ninety-five thousand, eight hundred eighty-six".