49943280113 has 4 divisors (see below), whose sum is σ = 49964188020. Its totient is φ = 49922372208.

The previous prime is 49943280109. The next prime is 49943280131. The reversal of 49943280113 is 31108234994.

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 25854067264 + 24089212849 = 160792^2 + 155207^2 .

It is a cyclic number.

It is not a de Polignac number, because 49943280113 - 2² = 49943280109 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (49943280193) 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, 10450370 + ... + 10455147.

It is an arithmetic number, because the mean of its divisors is an integer number (12491047005).

Almost surely, 2^49943280113 is an apocalyptic number.

It is an amenable number.

49943280113 is a deficient number, since it is larger than the sum of its proper divisors (20907907).

49943280113 is a wasteful number, since it uses less digits than its factorization.

49943280113 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20907906.

The product of its (nonzero) digits is 186624, while the sum is 44.

The spelling of 49943280113 in words is "forty-nine billion, nine hundred forty-three million, two hundred eighty thousand, one hundred thirteen".