7880520000 has 280 divisors, whose sum is σ = 27594616896. Its totient is φ = 1977344000.

The previous prime is 7880519989. The next prime is 7880520029. The reversal of 7880520000 is 250887.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a self number, because there is not a number n which added to its sum of digits gives 7880520000.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 2038069 + ... + 2041931.

Almost surely, 2^7880520000 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 7880520000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (13797308448).

7880520000 is an abundant number, since it is smaller than the sum of its proper divisors (19714096896).

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

7880520000 is a wasteful number, since it uses less digits than its factorization.

7880520000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3915 (or 3890 counting only the distinct ones).

The product of its (nonzero) digits is 4480, while the sum is 30.

The square root of 7880520000 is about 88772.2929747790. The cubic root of 7880520000 is about 1989.9933503141.

Adding to 7880520000 its reverse (250887), we get a palindrome (7880770887).

The spelling of 7880520000 in words is "seven billion, eight hundred eighty million, five hundred twenty thousand".