11949997446 has 48 divisors (see below), whose sum is σ = 28026817200. Its totient is φ = 3773677248.

The previous prime is 11949997429. The next prime is 11949997447. The reversal of 11949997446 is 64479994911.

11949997446 is a `hidden beast` number, since 1 + 19 + 4 + 99 + 97 + 446 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11949997447) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 287011 + ... + 325998.

It is an arithmetic number, because the mean of its divisors is an integer number (583892025).

Almost surely, 2^11949997446 is an apocalyptic number.

11949997446 is an abundant number, since it is smaller than the sum of its proper divisors (16076819754).

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

11949997446 is a wasteful number, since it uses less digits than its factorization.

11949997446 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 613058 (or 613033 counting only the distinct ones).

The product of its digits is 17635968, while the sum is 63.

The spelling of 11949997446 in words is "eleven billion, nine hundred forty-nine million, nine hundred ninety-seven thousand, four hundred forty-six".