7880758004 has 72 divisors (see below), whose sum is σ = 16677370080. Its totient is φ = 3245054400.

The previous prime is 7880757943. The next prime is 7880758021. The reversal of 7880758004 is 4008570887.

It is a happy number.

It is a super-2 number, since 2×7880758004² (a number of 21 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 7880758004.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1196039 + ... + 1202609.

It is an arithmetic number, because the mean of its divisors is an integer number (231630140).

Almost surely, 2^7880758004 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 7880758004, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (8338685040).

7880758004 is an abundant number, since it is smaller than the sum of its proper divisors (8796612076).

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

7880758004 is a wasteful number, since it uses less digits than its factorization.

7880758004 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6829 (or 6820 counting only the distinct ones).

The product of its (nonzero) digits is 501760, while the sum is 47.

The square root of 7880758004 is about 88773.6334955374. The cubic root of 7880758004 is about 1990.0133837471.

The spelling of 7880758004 in words is "seven billion, eight hundred eighty million, seven hundred fifty-eight thousand, four".