7876123172 has 12 divisors (see below), whose sum is σ = 13785770460. Its totient is φ = 3937331616.

The previous prime is 7876123139. The next prime is 7876123201. The reversal of 7876123172 is 2713216787.

It can be written as a sum of positive squares in 2 ways, for example, as 5877675556 + 1998447616 = 76666^2 + 44704^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 157847 + ... + 201662.

It is an arithmetic number, because the mean of its divisors is an integer number (1148814205).

Almost surely, 2^7876123172 is an apocalyptic number.

It is an amenable number.

7876123172 is a deficient number, since it is larger than the sum of its proper divisors (5909647288).

7876123172 is a wasteful number, since it uses less digits than its factorization.

7876123172 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 364990 (or 364988 counting only the distinct ones).

The product of its digits is 197568, while the sum is 44.

The square root of 7876123172 is about 88747.5248781621. The cubic root of 7876123172 is about 1989.6231849680.

The spelling of 7876123172 in words is "seven billion, eight hundred seventy-six million, one hundred twenty-three thousand, one hundred seventy-two".