49261959913 has 2 divisors, whose sum is σ = 49261959914. Its totient is φ = 49261959912.

The previous prime is 49261959841. The next prime is 49261959947. The reversal of 49261959913 is 31995916294.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 44271526464 + 4990433449 = 210408^2 + 70643^2 .

It is a cyclic number.

It is not a de Polignac number, because 49261959913 - 2⁹ = 49261959401 is a prime.

It is not a weakly prime, because it can be changed into another prime (49261959953) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 24630979956 + 24630979957.

It is an arithmetic number, because the mean of its divisors is an integer number (24630979957).

Almost surely, 2^49261959913 is an apocalyptic number.

It is an amenable number.

49261959913 is a deficient number, since it is larger than the sum of its proper divisors (1).

49261959913 is an equidigital number, since it uses as much as digits as its factorization.

49261959913 is an evil number, because the sum of its binary digits is even.

The product of its digits is 4723920, while the sum is 58.

The spelling of 49261959913 in words is "forty-nine billion, two hundred sixty-one million, nine hundred fifty-nine thousand, nine hundred thirteen".