7871614672 has 20 divisors (see below), whose sum is σ = 15255670276. Its totient is φ = 3934667520.

The previous prime is 7871614651. The next prime is 7871614687. The reversal of 7871614672 is 2764161787.

It can be written as a sum of positive squares in 2 ways, for example, as 5857759296 + 2013855376 = 76536^2 + 44876^2 .

It is a congruent number.

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, 12813 + ... + 126124.

Almost surely, 2^7871614672 is an apocalyptic number.

It is an amenable number.

7871614672 is a deficient number, since it is larger than the sum of its proper divisors (7384055604).

7871614672 is a wasteful number, since it uses less digits than its factorization.

7871614672 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 142486 (or 142480 counting only the distinct ones).

The product of its digits is 790272, while the sum is 49.

The square root of 7871614672 is about 88722.1205337203. The cubic root of 7871614672 is about 1989.2434749646.

The spelling of 7871614672 in words is "seven billion, eight hundred seventy-one million, six hundred fourteen thousand, six hundred seventy-two".