12690459036 has 36 divisors (see below), whose sum is σ = 32092980192. Its totient is φ = 4228264704.

The previous prime is 12690459029. The next prime is 12690459037. The reversal of 12690459036 is 63095409621.

12690459036 is a `hidden beast` number, since 1 + 26 + 9 + 0 + 4 + 590 + 36 = 666.

It is a tau number, because it is divible by the number of its divisors (36).

It is a super-2 number, since 2×12690459036² (a number of 21 digits) contains 22 as substring.

It is a hoax number, since the sum of its digits (45) coincides with the sum of the digits of its distinct prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 12690458982 and 12690459000.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12690459037) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4285 + ... + 159371.

It is an arithmetic number, because the mean of its divisors is an integer number (891471672).

Almost surely, 2^12690459036 is an apocalyptic number.

It is an amenable number.

12690459036 is an abundant number, since it is smaller than the sum of its proper divisors (19402521156).

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

12690459036 is a wasteful number, since it uses less digits than its factorization.

12690459036 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 157370 (or 157365 counting only the distinct ones).

The product of its (nonzero) digits is 349920, while the sum is 45.

The spelling of 12690459036 in words is "twelve billion, six hundred ninety million, four hundred fifty-nine thousand, thirty-six".