131263886649 has 16 divisors (see below), whose sum is σ = 211787111808. Its totient is φ = 70595703552.

The previous prime is 131263886639. The next prime is 131263886693. The reversal of 131263886649 is 946688362131.

It is not a de Polignac number, because 131263886649 - 2⁵ = 131263886617 is a prime.

It is not an unprimeable number, because it can be changed into a prime (131263886639) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 183842622 + ... + 183843335.

It is an arithmetic number, because the mean of its divisors is an integer number (13236694488).

Almost surely, 2^131263886649 is an apocalyptic number.

It is an amenable number.

131263886649 is a deficient number, since it is larger than the sum of its proper divisors (80523225159).

131263886649 is a wasteful number, since it uses less digits than its factorization.

131263886649 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 367685984.

The product of its digits is 8957952, while the sum is 57.

The spelling of 131263886649 in words is "one hundred thirty-one billion, two hundred sixty-three million, eight hundred eighty-six thousand, six hundred forty-nine".