12051951948 has 36 divisors (see below), whose sum is σ = 30981011880. Its totient is φ = 3949226496.

The previous prime is 12051951913. The next prime is 12051951973. The reversal of 12051951948 is 84915915021.

12051951948 is a `hidden beast` number, since 120 + 5 + 1 + 9 + 519 + 4 + 8 = 666.

It is a tau number, because it is divible by the number of its divisors (36).

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2834965 + ... + 2839212.

Almost surely, 2^12051951948 is an apocalyptic number.

12051951948 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

12051951948 is an abundant number, since it is smaller than the sum of its proper divisors (18929059932).

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

12051951948 is a wasteful number, since it uses less digits than its factorization.

12051951948 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5674246 (or 5674241 counting only the distinct ones).

The product of its (nonzero) digits is 129600, while the sum is 45.

The spelling of 12051951948 in words is "twelve billion, fifty-one million, nine hundred fifty-one thousand, nine hundred forty-eight".