4491866078127 has 14 divisors (see below), whose sum is σ = 6734718277352. Its totient is φ = 2994577384932.

The previous prime is 4491866078107. The next prime is 4491866078159. The reversal of 4491866078127 is 7218706681944.

4491866078127 is a `hidden beast` number, since 4 + 4 + 9 + 1 + 8 + 6 + 607 + 8 + 12 + 7 = 666.

It is not a de Polignac number, because 4491866078127 - 2²⁶ = 4491798969263 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4491866078107) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 13 ways as a sum of consecutive naturals, for example, 3080840203 + ... + 3080841660.

Almost surely, 2^{4491866078127} is an apocalyptic number.

4491866078127 is a deficient number, since it is larger than the sum of its proper divisors (2242852199225).

4491866078127 is an frugal number, since it uses more digits than its factorization.

4491866078127 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6161681881 (or 6161681866 counting only the distinct ones).

The product of its (nonzero) digits is 32514048, while the sum is 63.

The spelling of 4491866078127 in words is "four trillion, four hundred ninety-one billion, eight hundred sixty-six million, seventy-eight thousand, one hundred twenty-seven".