7913520000 has 480 divisors, whose sum is σ = 29514771000. Its totient is φ = 2032128000.

The previous prime is 7913519993. The next prime is 7913520037. The reversal of 7913520000 is 253197.

It is a tau number, because it is divible by the number of its divisors (480).

It is a congruent number.

It is an unprimeable number.

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 59 ways as a sum of consecutive naturals, for example, 20879811 + ... + 20880189.

Almost surely, 2^7913520000 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 7913520000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (14757385500).

7913520000 is an abundant number, since it is smaller than the sum of its proper divisors (21601251000).

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

7913520000 is a wasteful number, since it uses less digits than its factorization.

7913520000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 448 (or 418 counting only the distinct ones).

The product of its (nonzero) digits is 1890, while the sum is 27.

The square root of 7913520000 is about 88957.9676026830. The cubic root of 7913520000 is about 1992.7672082258.

Adding to 7913520000 its reverse (253197), we get a palindrome (7913773197).

The spelling of 7913520000 in words is "seven billion, nine hundred thirteen million, five hundred twenty thousand".