12690934523442 has 24 divisors (see below), whose sum is σ = 31425171201216. Its totient is φ = 3625981292376.

The previous prime is 12690934523413. The next prime is 12690934523461. The reversal of 12690934523442 is 24432543909621.

It is a happy number.

12690934523442 is a `hidden beast` number, since 1 + 2 + 6 + 90 + 93 + 4 + 5 + 23 + 442 = 666.

12690934523442 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×12690934523442² (a number of 27 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 50360851158 + ... + 50360851409.

It is an arithmetic number, because the mean of its divisors is an integer number (1309382133384).

Almost surely, 2^{12690934523442} is an apocalyptic number.

12690934523442 is an abundant number, since it is smaller than the sum of its proper divisors (18734236677774).

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

12690934523442 is a wasteful number, since it uses less digits than its factorization.

12690934523442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 100721702582 (or 100721702579 counting only the distinct ones).

The product of its (nonzero) digits is 11197440, while the sum is 54.

The spelling of 12690934523442 in words is "twelve trillion, six hundred ninety billion, nine hundred thirty-four million, five hundred twenty-three thousand, four hundred forty-two".