49677716881 has 4 divisors (see below), whose sum is σ = 53499079732. Its totient is φ = 45856354032.

The previous prime is 49677716849. The next prime is 49677716917. The reversal of 49677716881 is 18861777694.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 6493136400 + 43184580481 = 80580^2 + 207809^2 .

It is a cyclic number.

It is not a de Polignac number, because 49677716881 - 2⁵ = 49677716849 is a prime.

It is a super-2 number, since 2×49677716881² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (49677716801) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1910681406 + ... + 1910681431.

It is an arithmetic number, because the mean of its divisors is an integer number (13374769933).

Almost surely, 2^49677716881 is an apocalyptic number.

It is an amenable number.

49677716881 is a deficient number, since it is larger than the sum of its proper divisors (3821362851).

49677716881 is a wasteful number, since it uses less digits than its factorization.

49677716881 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3821362850.

The product of its digits is 28449792, while the sum is 64.

The spelling of 49677716881 in words is "forty-nine billion, six hundred seventy-seven million, seven hundred sixteen thousand, eight hundred eighty-one".