7949825886 has 16 divisors (see below), whose sum is σ = 15914538000. Its totient is φ = 2647460928.

The previous prime is 7949825827. The next prime is 7949825903. The reversal of 7949825886 is 6885289497.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 613311 + ... + 626138.

It is an arithmetic number, because the mean of its divisors is an integer number (994658625).

Almost surely, 2^7949825886 is an apocalyptic number.

7949825886 is an abundant number, since it is smaller than the sum of its proper divisors (7964712114).

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

7949825886 is a wasteful number, since it uses less digits than its factorization.

7949825886 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1240523.

The product of its digits is 69672960, while the sum is 66.

The square root of 7949825886 is about 89161.7961124606. The cubic root of 7949825886 is about 1995.8100521315.

The spelling of 7949825886 in words is "seven billion, nine hundred forty-nine million, eight hundred twenty-five thousand, eight hundred eighty-six".