49809414251 has 2 divisors, whose sum is σ = 49809414252. Its totient is φ = 49809414250.

The previous prime is 49809414209. The next prime is 49809414271. The reversal of 49809414251 is 15241490894.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-49809414251 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 49809414196 and 49809414205.

It is not a weakly prime, because it can be changed into another prime (49809414271) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 24904707125 + 24904707126.

It is an arithmetic number, because the mean of its divisors is an integer number (24904707126).

Almost surely, 2^49809414251 is an apocalyptic number.

49809414251 is a deficient number, since it is larger than the sum of its proper divisors (1).

49809414251 is an equidigital number, since it uses as much as digits as its factorization.

49809414251 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 414720, while the sum is 47.

The spelling of 49809414251 in words is "forty-nine billion, eight hundred nine million, four hundred fourteen thousand, two hundred fifty-one".