49434107977 has 4 divisors (see below), whose sum is σ = 51138732420. Its totient is φ = 47729483536.

The previous prime is 49434107881. The next prime is 49434107981. The reversal of 49434107977 is 77970143494.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 77970143494 = 2 ⋅38985071747.

It can be written as a sum of positive squares in 2 ways, for example, as 39044179216 + 10389928761 = 197596^2 + 101931^2 .

It is a cyclic number.

It is not a de Polignac number, because 49434107977 - 2²⁷ = 49299890249 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (49434107377) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 852312178 + ... + 852312235.

It is an arithmetic number, because the mean of its divisors is an integer number (12784683105).

Almost surely, 2^49434107977 is an apocalyptic number.

It is an amenable number.

49434107977 is a deficient number, since it is larger than the sum of its proper divisors (1704624443).

49434107977 is a wasteful number, since it uses less digits than its factorization.

49434107977 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1704624442.

The product of its (nonzero) digits is 5334336, while the sum is 55.

The spelling of 49434107977 in words is "forty-nine billion, four hundred thirty-four million, one hundred seven thousand, nine hundred seventy-seven".