12149699484 has 24 divisors (see below), whose sum is σ = 30530014480. Its totient is φ = 3738369024.

The previous prime is 12149699483. The next prime is 12149699491. The reversal of 12149699484 is 48499694121.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12149699483) 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, 38941189 + ... + 38941500.

Almost surely, 2^12149699484 is an apocalyptic number.

It is an amenable number.

12149699484 is an abundant number, since it is smaller than the sum of its proper divisors (18380314996).

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

12149699484 is a wasteful number, since it uses less digits than its factorization.

12149699484 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 77882709 (or 77882707 counting only the distinct ones).

The product of its digits is 4478976, while the sum is 57.

The spelling of 12149699484 in words is "twelve billion, one hundred forty-nine million, six hundred ninety-nine thousand, four hundred eighty-four".