7866072672 has 24 divisors (see below), whose sum is σ = 20648441016. Its totient is φ = 2622024192.

The previous prime is 7866072667. The next prime is 7866072677. The reversal of 7866072672 is 2762706687.

It is an interprime number because it is at equal distance from previous prime (7866072667) and next prime (7866072677).

It is a tau number, because it is divible by the number of its divisors (24).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7866072677) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 40969033 + ... + 40969224.

It is an arithmetic number, because the mean of its divisors is an integer number (860351709).

Almost surely, 2^7866072672 is an apocalyptic number.

It is an amenable number.

7866072672 is an abundant number, since it is smaller than the sum of its proper divisors (12782368344).

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

7866072672 is a wasteful number, since it uses less digits than its factorization.

7866072672 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 81938270 (or 81938262 counting only the distinct ones).

The product of its (nonzero) digits is 2370816, while the sum is 51.

The square root of 7866072672 is about 88690.8826881320. The cubic root of 7866072672 is about 1988.7765239410.

The spelling of 7866072672 in words is "seven billion, eight hundred sixty-six million, seventy-two thousand, six hundred seventy-two".