49738736261 has 2 divisors, whose sum is σ = 49738736262. Its totient is φ = 49738736260.

The previous prime is 49738736249. The next prime is 49738736279. The reversal of 49738736261 is 16263783794.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 44261848225 + 5476888036 = 210385^2 + 74006^2 .

It is a cyclic number.

It is not a de Polignac number, because 49738736261 - 2⁶ = 49738736197 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 49738736197 and 49738736206.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (49738736231) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 24869368130 + 24869368131.

It is an arithmetic number, because the mean of its divisors is an integer number (24869368131).

Almost surely, 2^49738736261 is an apocalyptic number.

It is an amenable number.

49738736261 is a deficient number, since it is larger than the sum of its proper divisors (1).

49738736261 is an equidigital number, since it uses as much as digits as its factorization.

49738736261 is an evil number, because the sum of its binary digits is even.

The product of its digits is 9144576, while the sum is 56.

The spelling of 49738736261 in words is "forty-nine billion, seven hundred thirty-eight million, seven hundred thirty-six thousand, two hundred sixty-one".