7646980521 has 32 divisors (see below), whose sum is σ = 11235041280. Its totient is φ = 4607971200.

The previous prime is 7646980469. The next prime is 7646980529. The reversal of 7646980521 is 1250896467.

It is not a de Polignac number, because 7646980521 - 2⁶ = 7646980457 is a prime.

It is a super-2 number, since 2×7646980521² (a number of 21 digits) contains 22 as substring.

It is a Smith number, since the sum of its digits (48) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is not an unprimeable number, because it can be changed into a prime (7646980529) by changing a digit.

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 31 ways as a sum of consecutive naturals, for example, 94981 + ... + 155933.

It is an arithmetic number, because the mean of its divisors is an integer number (351095040).

Almost surely, 2^7646980521 is an apocalyptic number.

7646980521 is a gapful number since it is divisible by the number (71) formed by its first and last digit.

It is an amenable number.

7646980521 is a deficient number, since it is larger than the sum of its proper divisors (3588060759).

7646980521 is a wasteful number, since it uses less digits than its factorization.

7646980521 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 61077.

The product of its (nonzero) digits is 725760, while the sum is 48.

The square root of 7646980521 is about 87447.0155065340. The cubic root of 7646980521 is about 1970.1380614760.

The spelling of 7646980521 in words is "seven billion, six hundred forty-six million, nine hundred eighty thousand, five hundred twenty-one".