131838064779 has 16 divisors (see below), whose sum is σ = 185317880832. Its totient is φ = 83203938048.

The previous prime is 131838064753. The next prime is 131838064783. The reversal of 131838064779 is 977460838131.

It is a happy number.

It is not a de Polignac number, because 131838064779 - 2⁷ = 131838064651 is a prime.

It is not an unprimeable number, because it can be changed into a prime (131838064979) 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, 9842259 + ... + 9855644.

It is an arithmetic number, because the mean of its divisors is an integer number (11582367552).

Almost surely, 2^131838064779 is an apocalyptic number.

131838064779 is a deficient number, since it is larger than the sum of its proper divisors (53479816053).

131838064779 is a wasteful number, since it uses less digits than its factorization.

131838064779 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19698026.

The product of its (nonzero) digits is 6096384, while the sum is 57.

The spelling of 131838064779 in words is "one hundred thirty-one billion, eight hundred thirty-eight million, sixty-four thousand, seven hundred seventy-nine".