7909974722523 has 18 divisors (see below), whose sum is σ = 10564818094236. Its totient is φ = 5264239557072.

The previous prime is 7909974722483. The next prime is 7909974722527. The reversal of 7909974722523 is 3252274799097.

It is not a de Polignac number, because 7909974722523 - 2¹² = 7909974718427 is a prime.

It is a super-2 number, since 2×7909974722523² (a number of 27 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (7909974722527) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 4009109365 + ... + 4009111337.

Almost surely, 2^{7909974722523} is an apocalyptic number.

7909974722523 is a deficient number, since it is larger than the sum of its proper divisors (2654843371713).

7909974722523 is an frugal number, since it uses more digits than its factorization.

7909974722523 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5595 (or 2799 counting only the distinct ones).

The product of its (nonzero) digits is 120022560, while the sum is 66.

The spelling of 7909974722523 in words is "seven trillion, nine hundred nine billion, nine hundred seventy-four million, seven hundred twenty-two thousand, five hundred twenty-three".