7521693696 has 364 divisors, whose sum is σ = 24709625880. Its totient is φ = 2269347840.

The previous prime is 7521693677. The next prime is 7521693701. The reversal of 7521693696 is 6963961257.

It is a super-2 number, since 2×7521693696² (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 27 ways as a sum of consecutive naturals, for example, 32845710 + ... + 32845938.

Almost surely, 2^7521693696 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 7521693696, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (12354812940).

7521693696 is an abundant number, since it is smaller than the sum of its proper divisors (17187932184).

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

7521693696 is an equidigital number, since it uses as much as digits as its factorization.

7521693696 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 282 (or 245 counting only the distinct ones).

The product of its digits is 3674160, while the sum is 54.

The square root of 7521693696 is about 86727.6985512702. The cubic root of 7521693696 is about 1959.3192915917.

The spelling of 7521693696 in words is "seven billion, five hundred twenty-one million, six hundred ninety-three thousand, six hundred ninety-six".