49906770913 has 2 divisors, whose sum is σ = 49906770914. Its totient is φ = 49906770912.

The previous prime is 49906770889. The next prime is 49906770941. The reversal of 49906770913 is 31907760994.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 44416405504 + 5490365409 = 210752^2 + 74097^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-49906770913 is a prime.

It is not a weakly prime, because it can be changed into another prime (49906770943) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 24953385456 + 24953385457.

It is an arithmetic number, because the mean of its divisors is an integer number (24953385457).

Almost surely, 2^49906770913 is an apocalyptic number.

It is an amenable number.

49906770913 is a deficient number, since it is larger than the sum of its proper divisors (1).

49906770913 is an equidigital number, since it uses as much as digits as its factorization.

49906770913 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2571912, while the sum is 55.

The spelling of 49906770913 in words is "forty-nine billion, nine hundred six million, seven hundred seventy thousand, nine hundred thirteen".