7819926672 has 80 divisors (see below), whose sum is σ = 21521122560. Its totient is φ = 2439674496.

The previous prime is 7819926671. The next prime is 7819926677. The reversal of 7819926672 is 2766299187.

It is a super-2 number, since 2×7819926672² (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (57).

It is not an unprimeable number, because it can be changed into a prime (7819926671) 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, 24043 + ... + 127349.

It is an arithmetic number, because the mean of its divisors is an integer number (269014032).

Almost surely, 2^7819926672 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 7819926672, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (10760561280).

7819926672 is an abundant number, since it is smaller than the sum of its proper divisors (13701195888).

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

7819926672 is a wasteful number, since it uses less digits than its factorization.

7819926672 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 103420 (or 103414 counting only the distinct ones).

The product of its digits is 4572288, while the sum is 57.

The square root of 7819926672 is about 88430.3492699198. The cubic root of 7819926672 is about 1984.8798682022.

The spelling of 7819926672 in words is "seven billion, eight hundred nineteen million, nine hundred twenty-six thousand, six hundred seventy-two".