49922312161 has 4 divisors (see below), whose sum is σ = 49924209924. Its totient is φ = 49920414400.

The previous prime is 49922312159. The next prime is 49922312213. The reversal of 49922312161 is 16121322994.

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 3430327761 + 46491984400 = 58569^2 + 215620^2 .

It is a cyclic number.

It is not a de Polignac number, because 49922312161 - 2¹ = 49922312159 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (49922315161) 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, 908860 + ... + 962221.

It is an arithmetic number, because the mean of its divisors is an integer number (12481052481).

Almost surely, 2^49922312161 is an apocalyptic number.

It is an amenable number.

49922312161 is a deficient number, since it is larger than the sum of its proper divisors (1897763).

49922312161 is a wasteful number, since it uses less digits than its factorization.

49922312161 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1897762.

The product of its digits is 46656, while the sum is 40.

The spelling of 49922312161 in words is "forty-nine billion, nine hundred twenty-two million, three hundred twelve thousand, one hundred sixty-one".