49406620177 has 4 divisors (see below), whose sum is σ = 49590288180. Its totient is φ = 49222952176.

The previous prime is 49406620169. The next prime is 49406620187. The reversal of 49406620177 is 77102660494.

It is a Cunningham number, because it is equal to 222276²+1.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 77102660494 = 2 ⋅38551330247.

It can be written as a sum of positive squares in 2 ways, for example, as 3250824256 + 46155795921 = 57016^2 + 214839^2 .

It is a cyclic number.

It is not a de Polignac number, because 49406620177 - 2³ = 49406620169 is a prime.

It is a super-2 number, since 2×49406620177² (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 (49406620187) 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, 91833598 + ... + 91834135.

It is an arithmetic number, because the mean of its divisors is an integer number (12397572045).

Almost surely, 2^49406620177 is an apocalyptic number.

It is an amenable number.

49406620177 is a deficient number, since it is larger than the sum of its proper divisors (183668003).

49406620177 is a wasteful number, since it uses less digits than its factorization.

49406620177 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 183668002.

The product of its (nonzero) digits is 508032, while the sum is 46.

The spelling of 49406620177 in words is "forty-nine billion, four hundred six million, six hundred twenty thousand, one hundred seventy-seven".