12054442257 has 48 divisors (see below), whose sum is σ = 20532657600. Its totient is φ = 6718481280.

The previous prime is 12054442243. The next prime is 12054442291. The reversal of 12054442257 is 75224445021.

12054442257 is a `hidden beast` number, since 1 + 20 + 544 + 42 + 2 + 57 = 666.

It is not a de Polignac number, because 12054442257 - 2²² = 12050247953 is a prime.

It is not an unprimeable number, because it can be changed into a prime (12054442357) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 328794 + ... + 363612.

It is an arithmetic number, because the mean of its divisors is an integer number (427763700).

Almost surely, 2^12054442257 is an apocalyptic number.

It is an amenable number.

12054442257 is a deficient number, since it is larger than the sum of its proper divisors (8478215343).

12054442257 is a wasteful number, since it uses less digits than its factorization.

12054442257 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35118 (or 35115 counting only the distinct ones).

The product of its (nonzero) digits is 89600, while the sum is 36.

Adding to 12054442257 its reverse (75224445021), we get a palindrome (87278887278).

The spelling of 12054442257 in words is "twelve billion, fifty-four million, four hundred forty-two thousand, two hundred fifty-seven".