7191678872 has 32 divisors (see below), whose sum is σ = 15528395520. Its totient is φ = 3058617120.

The previous prime is 7191678869. The next prime is 7191678931. The reversal of 7191678872 is 2788761917.

It is a Harshad number since it is a multiple of its sum of digits (56).

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, 482828 + ... + 497499.

It is an arithmetic number, because the mean of its divisors is an integer number (485262360).

Almost surely, 2^7191678872 is an apocalyptic number.

It is an amenable number.

7191678872 is an abundant number, since it is smaller than the sum of its proper divisors (8336716648).

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

7191678872 is a wasteful number, since it uses less digits than its factorization.

7191678872 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 980471 (or 980467 counting only the distinct ones).

The product of its digits is 2370816, while the sum is 56.

The square root of 7191678872 is about 84803.7668502998. The cubic root of 7191678872 is about 1930.2345971999.

The spelling of 7191678872 in words is "seven billion, one hundred ninety-one million, six hundred seventy-eight thousand, eight hundred seventy-two".