12623762142738 has 48 divisors (see below), whose sum is σ = 27468630909720. Its totient is φ = 4189915842048.

The previous prime is 12623762142721. The next prime is 12623762142757. The reversal of 12623762142738 is 83724126732621.

12623762142738 is a `hidden beast` number, since 1 + 2 + 6 + 2 + 3 + 7 + 621 + 4 + 2 + 7 + 3 + 8 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 11368988034849 + 1254774107889 = 3371793^2 + 1120167^2 .

It is a super-2 number, since 2×12623762142738² (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 23 ways as a sum of consecutive naturals, for example, 7870656 + ... + 9337812.

Almost surely, 2^{12623762142738} is an apocalyptic number.

12623762142738 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

12623762142738 is an abundant number, since it is smaller than the sum of its proper divisors (14844868766982).

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

12623762142738 is a wasteful number, since it uses less digits than its factorization.

12623762142738 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1469211 (or 1469208 counting only the distinct ones).

The product of its digits is 8128512, while the sum is 54.

The spelling of 12623762142738 in words is "twelve trillion, six hundred twenty-three billion, seven hundred sixty-two million, one hundred forty-two thousand, seven hundred thirty-eight".