49911117727 has 4 divisors (see below), whose sum is σ = 52538018680. Its totient is φ = 47284216776.

The previous prime is 49911117721. The next prime is 49911117787. The reversal of 49911117727 is 72771111994.

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 49911117727 - 2²⁷ = 49776899999 is a prime.

It is a super-2 number, since 2×49911117727² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (49911117721) 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, 1313450448 + ... + 1313450485.

It is an arithmetic number, because the mean of its divisors is an integer number (13134504670).

Almost surely, 2^49911117727 is an apocalyptic number.

49911117727 is a deficient number, since it is larger than the sum of its proper divisors (2626900953).

49911117727 is a wasteful number, since it uses less digits than its factorization.

49911117727 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2626900952.

The product of its digits is 222264, while the sum is 49.

The spelling of 49911117727 in words is "forty-nine billion, nine hundred eleven million, one hundred seventeen thousand, seven hundred twenty-seven".