49686706777 has 16 divisors (see below), whose sum is σ = 53175709440. Its totient is φ = 46311232000.

The previous prime is 49686706753. The next prime is 49686706781. The reversal of 49686706777 is 77760768694.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-49686706777 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (49686706177) 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, 759777 + ... + 822577.

It is an arithmetic number, because the mean of its divisors is an integer number (3323481840).

Almost surely, 2^49686706777 is an apocalyptic number.

It is an amenable number.

49686706777 is a deficient number, since it is larger than the sum of its proper divisors (3489002663).

49686706777 is a wasteful number, since it uses less digits than its factorization.

49686706777 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 63704.

The product of its (nonzero) digits is 149361408, while the sum is 67.

The spelling of 49686706777 in words is "forty-nine billion, six hundred eighty-six million, seven hundred six thousand, seven hundred seventy-seven".