49563730881 has 12 divisors (see below), whose sum is σ = 81819492352. Its totient is φ = 28322131896.

The previous prime is 49563730823. The next prime is 49563730889. The reversal of 49563730881 is 18803736594.

49563730881 is a `hidden beast` number, since 4 + 9 + 563 + 73 + 0 + 8 + 8 + 1 = 666.

It is not a de Polignac number, because 49563730881 - 2⁷ = 49563730753 is a prime.

It is a super-2 number, since 2×49563730881² (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 (49563730889) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 393362881 + ... + 393363006.

Almost surely, 2^49563730881 is an apocalyptic number.

It is an amenable number.

49563730881 is a deficient number, since it is larger than the sum of its proper divisors (32255761471).

49563730881 is a wasteful number, since it uses less digits than its factorization.

49563730881 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 786725900 (or 786725897 counting only the distinct ones).

The product of its (nonzero) digits is 4354560, while the sum is 54.

The spelling of 49563730881 in words is "forty-nine billion, five hundred sixty-three million, seven hundred thirty thousand, eight hundred eighty-one".