12148992774 has 24 divisors (see below), whose sum is σ = 26484313752. Its totient is φ = 4024818720.

The previous prime is 12148992773. The next prime is 12148992799. The reversal of 12148992774 is 47729984121.

12148992774 is a `hidden beast` number, since 1 + 2 + 1 + 489 + 92 + 7 + 74 = 666.

It is a self number, because there is not a number n which added to its sum of digits gives 12148992774.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12148992773) 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, 2067447 + ... + 2073314.

It is an arithmetic number, because the mean of its divisors is an integer number (1103513073).

Almost surely, 2^12148992774 is an apocalyptic number.

12148992774 is an abundant number, since it is smaller than the sum of its proper divisors (14335320978).

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

12148992774 is a wasteful number, since it uses less digits than its factorization.

12148992774 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4140932 (or 4140929 counting only the distinct ones).

The product of its digits is 2032128, while the sum is 54.

The spelling of 12148992774 in words is "twelve billion, one hundred forty-eight million, nine hundred ninety-two thousand, seven hundred seventy-four".