7975340520 has 256 divisors, whose sum is σ = 28070461440. Its totient is φ = 1775167488.

The previous prime is 7975340423. The next prime is 7975340531. The reversal of 7975340520 is 250435797.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 5088777 + ... + 5090343.

It is an arithmetic number, because the mean of its divisors is an integer number (109650240).

Almost surely, 2^7975340520 is an apocalyptic number.

7975340520 is a gapful number since it is divisible by the number (70) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 7975340520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (14035230720).

7975340520 is an abundant number, since it is smaller than the sum of its proper divisors (20095120920).

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

7975340520 is a wasteful number, since it uses less digits than its factorization.

7975340520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1744 (or 1740 counting only the distinct ones).

The product of its (nonzero) digits is 264600, while the sum is 42.

The square root of 7975340520 is about 89304.7620230859. The cubic root of 7975340520 is about 1997.9429282867.

The spelling of 7975340520 in words is "seven billion, nine hundred seventy-five million, three hundred forty thousand, five hundred twenty".