7972003780 has 72 divisors (see below), whose sum is σ = 18916414272. Its totient is φ = 2815502976.

The previous prime is 7972003771. The next prime is 7972003789. The reversal of 7972003780 is 873002797.

It is an interprime number because it is at equal distance from previous prime (7972003771) and next prime (7972003789).

It is not an unprimeable number, because it can be changed into a prime (7972003789) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 26467 + ... + 129013.

It is an arithmetic number, because the mean of its divisors is an integer number (262727976).

Almost surely, 2^7972003780 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 7972003780, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (9458207136).

7972003780 is an abundant number, since it is smaller than the sum of its proper divisors (10944410492).

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

7972003780 is a wasteful number, since it uses less digits than its factorization.

7972003780 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 102605 (or 102590 counting only the distinct ones).

The product of its (nonzero) digits is 148176, while the sum is 43.

The square root of 7972003780 is about 89286.0783101151. The cubic root of 7972003780 is about 1997.6642548760.

The spelling of 7972003780 in words is "seven billion, nine hundred seventy-two million, three thousand, seven hundred eighty".