7899714144 has 432 divisors, whose sum is σ = 27449604000. Its totient is φ = 2145927168.

The previous prime is 7899714143. The next prime is 7899714161. The reversal of 7899714144 is 4414179987.

7899714144 is a `hidden beast` number, since 78 + 99 + 71 + 414 + 4 = 666.

It is a nude number because it is divisible by every one of its digits.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7899714143) by changing a digit.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 39696957 + ... + 39697155.

It is an arithmetic number, because the mean of its divisors is an integer number (63540750).

Almost surely, 2^7899714144 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 7899714144, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (13724802000).

7899714144 is an abundant number, since it is smaller than the sum of its proper divisors (19549889856).

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

7899714144 is a wasteful number, since it uses less digits than its factorization.

7899714144 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 355 (or 337 counting only the distinct ones).

The product of its digits is 2032128, while the sum is 54.

The square root of 7899714144 is about 88880.3360929739. The cubic root of 7899714144 is about 1991.6076790647.

The spelling of 7899714144 in words is "seven billion, eight hundred ninety-nine million, seven hundred fourteen thousand, one hundred forty-four".