7650344520 has 576 divisors, whose sum is σ = 31643604720. Its totient is φ = 1588543488.

The previous prime is 7650344497. The next prime is 7650344521. The reversal of 7650344520 is 254430567.

It can be written as a sum of positive squares in 8 ways, for example, as 3612250404 + 4038094116 = 60102^2 + 63546^2 .

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7650344521) by changing a digit.

It is a polite number, since it can be written in 143 ways as a sum of consecutive naturals, for example, 16740132 + ... + 16740588.

Almost surely, 2^7650344520 is an apocalyptic number.

7650344520 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 7650344520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (15821802360).

7650344520 is an abundant number, since it is smaller than the sum of its proper divisors (23993260200).

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

7650344520 is a wasteful number, since it uses less digits than its factorization.

7650344520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 574 (or 560 counting only the distinct ones).

The product of its (nonzero) digits is 100800, while the sum is 36.

The square root of 7650344520 is about 87466.2478902576. The cubic root of 7650344520 is about 1970.4269149585.

The spelling of 7650344520 in words is "seven billion, six hundred fifty million, three hundred forty-four thousand, five hundred twenty".