7840674672 has 80 divisors (see below), whose sum is σ = 21347621760. Its totient is φ = 2472926976.

The previous prime is 7840674629. The next prime is 7840674731. The reversal of 7840674672 is 2764760487.

It is a happy number.

It is a super-2 number, since 2×7840674672² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 794923 + ... + 804725.

It is an arithmetic number, because the mean of its divisors is an integer number (266845272).

Almost surely, 2^7840674672 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 7840674672, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (10673810880).

7840674672 is an abundant number, since it is smaller than the sum of its proper divisors (13506947088).

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

7840674672 is a wasteful number, since it uses less digits than its factorization.

7840674672 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10710 (or 10704 counting only the distinct ones).

The product of its (nonzero) digits is 3161088, while the sum is 51.

The square root of 7840674672 is about 88547.5842245287. The cubic root of 7840674672 is about 1986.6337601464.

The spelling of 7840674672 in words is "seven billion, eight hundred forty million, six hundred seventy-four thousand, six hundred seventy-two".