12736705146 has 24 divisors (see below), whose sum is σ = 27999700512. Its totient is φ = 3859607400.

The previous prime is 12736705117. The next prime is 12736705153. The reversal of 12736705146 is 64150763721.

It is a happy number.

It is a super-2 number, since 2×12736705146² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 12736705098 and 12736705107.

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, 8771110 + ... + 8772561.

It is an arithmetic number, because the mean of its divisors is an integer number (1166654188).

Almost surely, 2^12736705146 is an apocalyptic number.

12736705146 is an abundant number, since it is smaller than the sum of its proper divisors (15262995366).

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

12736705146 is a wasteful number, since it uses less digits than its factorization.

12736705146 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17543698 (or 17543687 counting only the distinct ones).

The product of its (nonzero) digits is 211680, while the sum is 42.

The spelling of 12736705146 in words is "twelve billion, seven hundred thirty-six million, seven hundred five thousand, one hundred forty-six".