11712636494 has 16 divisors (see below), whose sum is σ = 18925229232. Its totient is φ = 5404456128.

The previous prime is 11712636461. The next prime is 11712636499. The reversal of 11712636494 is 49463621711.

It is a super-2 number, since 2×11712636494² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11712636499) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 50597 + ... + 161199.

It is an arithmetic number, because the mean of its divisors is an integer number (1182826827).

Almost surely, 2^11712636494 is an apocalyptic number.

11712636494 is a deficient number, since it is larger than the sum of its proper divisors (7212592738).

11712636494 is a wasteful number, since it uses less digits than its factorization.

11712636494 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 114691.

The product of its digits is 217728, while the sum is 44.

The spelling of 11712636494 in words is "eleven billion, seven hundred twelve million, six hundred thirty-six thousand, four hundred ninety-four".