12494780418 has 32 divisors (see below), whose sum is σ = 26313523200. Its totient is φ = 3944411856.

The previous prime is 12494780371. The next prime is 12494780549. The reversal of 12494780418 is 81408749421.

It is a super-2 number, since 2×12494780418² (a number of 21 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 361855 + ... + 394877.

It is an arithmetic number, because the mean of its divisors is an integer number (822297600).

Almost surely, 2^12494780418 is an apocalyptic number.

12494780418 is an abundant number, since it is smaller than the sum of its proper divisors (13818742782).

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

12494780418 is a wasteful number, since it uses less digits than its factorization.

12494780418 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36366.

The product of its (nonzero) digits is 516096, while the sum is 48.

The spelling of 12494780418 in words is "twelve billion, four hundred ninety-four million, seven hundred eighty thousand, four hundred eighteen".