49551993727 has 4 divisors (see below), whose sum is σ = 49710307120. Its totient is φ = 49393680336.

The previous prime is 49551993719. The next prime is 49551993761. The reversal of 49551993727 is 72739915594.

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

It is a cyclic number.

It is not a de Polignac number, because 49551993727 - 2³ = 49551993719 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (49551993797) 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, 79156227 + ... + 79156852.

It is an arithmetic number, because the mean of its divisors is an integer number (12427576780).

Almost surely, 2^49551993727 is an apocalyptic number.

49551993727 is a deficient number, since it is larger than the sum of its proper divisors (158313393).

49551993727 is a wasteful number, since it uses less digits than its factorization.

49551993727 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 158313392.

The product of its digits is 21432600, while the sum is 61.

The spelling of 49551993727 in words is "forty-nine billion, five hundred fifty-one million, nine hundred ninety-three thousand, seven hundred twenty-seven".