127996903449 has 24 divisors (see below), whose sum is σ = 186892497792. Its totient is φ = 84406354560.

The previous prime is 127996903327. The next prime is 127996903459. The reversal of 127996903449 is 944309699721.

127996903449 is a `hidden beast` number, since 12 + 7 + 9 + 96 + 90 + 3 + 449 = 666.

It is not a de Polignac number, because 127996903449 - 2²⁴ = 127980126233 is a prime.

It is not an unprimeable number, because it can be changed into a prime (127996903459) 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, 738324 + ... + 895050.

It is an arithmetic number, because the mean of its divisors is an integer number (7787187408).

Almost surely, 2^127996903449 is an apocalyptic number.

It is an amenable number.

127996903449 is a deficient number, since it is larger than the sum of its proper divisors (58895594343).

127996903449 is a wasteful number, since it uses less digits than its factorization.

127996903449 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 157717 (or 157714 counting only the distinct ones).

The product of its (nonzero) digits is 26453952, while the sum is 63.

The spelling of 127996903449 in words is "one hundred twenty-seven billion, nine hundred ninety-six million, nine hundred three thousand, four hundred forty-nine".