12374315521 has 8 divisors (see below), whose sum is σ = 13218167304. Its totient is φ = 11543347200.

The previous prime is 12374315519. The next prime is 12374315543. The reversal of 12374315521 is 12551347321.

It can be written as a sum of positive squares in 4 ways, for example, as 3470505921 + 8903809600 = 58911^2 + 94360^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 12374315521 - 2¹ = 12374315519 is a prime.

It is a super-2 number, since 2×12374315521² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12374315621) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 3218880 + ... + 3222721.

It is an arithmetic number, because the mean of its divisors is an integer number (1652270913).

Almost surely, 2^12374315521 is an apocalyptic number.

It is an amenable number.

12374315521 is a deficient number, since it is larger than the sum of its proper divisors (843851783).

12374315521 is a wasteful number, since it uses less digits than its factorization.

12374315521 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6441731.

The product of its digits is 25200, while the sum is 34.

The spelling of 12374315521 in words is "twelve billion, three hundred seventy-four million, three hundred fifteen thousand, five hundred twenty-one".