7939992000 has 224 divisors, whose sum is σ = 26779484160. Its totient is φ = 2071987200.

The previous prime is 7939991999. The next prime is 7939992019. The reversal of 7939992000 is 2999397.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1124481 + ... + 1131519.

Almost surely, 2^7939992000 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 7939992000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (13389742080).

7939992000 is an abundant number, since it is smaller than the sum of its proper divisors (18839492160).

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

7939992000 is a wasteful number, since it uses less digits than its factorization.

7939992000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7116 (or 7096 counting only the distinct ones).

The product of its (nonzero) digits is 275562, while the sum is 48.

The square root of 7939992000 is about 89106.6327497566. The cubic root of 7939992000 is about 1994.9867776336.

The spelling of 7939992000 in words is "seven billion, nine hundred thirty-nine million, nine hundred ninety-two thousand".