49742858861 has 2 divisors, whose sum is σ = 49742858862. Its totient is φ = 49742858860.

The previous prime is 49742858849. The next prime is 49742858887. The reversal of 49742858861 is 16885824794.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 49715620900 + 27237961 = 222970^2 + 5219^2 .

It is a cyclic number.

It is not a de Polignac number, because 49742858861 - 2³⁰ = 48669117037 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 49742858794 and 49742858803.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (49742858801) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 24871429430 + 24871429431.

It is an arithmetic number, because the mean of its divisors is an integer number (24871429431).

Almost surely, 2^49742858861 is an apocalyptic number.

It is an amenable number.

49742858861 is a deficient number, since it is larger than the sum of its proper divisors (1).

49742858861 is an equidigital number, since it uses as much as digits as its factorization.

49742858861 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 30965760, while the sum is 62.

The spelling of 49742858861 in words is "forty-nine billion, seven hundred forty-two million, eight hundred fifty-eight thousand, eight hundred sixty-one".