12261132954 has 48 divisors (see below), whose sum is σ = 30368512512. Its totient is φ = 3502302624.

The previous prime is 12261132941. The next prime is 12261132959. The reversal of 12261132954 is 45923116221.

12261132954 is a `hidden beast` number, since 1 + 2 + 2 + 611 + 32 + 9 + 5 + 4 = 666.

It is a super-2 number, since 2×12261132954² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (12261132959) 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, 623212 + ... + 642584.

It is an arithmetic number, because the mean of its divisors is an integer number (632677344).

Almost surely, 2^12261132954 is an apocalyptic number.

12261132954 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

12261132954 is an abundant number, since it is smaller than the sum of its proper divisors (18107379558).

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

12261132954 is a wasteful number, since it uses less digits than its factorization.

12261132954 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24411 (or 24408 counting only the distinct ones).

The product of its digits is 25920, while the sum is 36.

The spelling of 12261132954 in words is "twelve billion, two hundred sixty-one million, one hundred thirty-two thousand, nine hundred fifty-four".