49226390189 has 2 divisors, whose sum is σ = 49226390190. Its totient is φ = 49226390188.

The previous prime is 49226390173. The next prime is 49226390197. The reversal of 49226390189 is 98109362294.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 38697578089 + 10528812100 = 196717^2 + 102610^2 .

It is a cyclic number.

It is not a de Polignac number, because 49226390189 - 2⁴ = 49226390173 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 49226390189.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (49226390989) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 24613195094 + 24613195095.

It is an arithmetic number, because the mean of its divisors is an integer number (24613195095).

Almost surely, 2^49226390189 is an apocalyptic number.

It is an amenable number.

49226390189 is a deficient number, since it is larger than the sum of its proper divisors (1).

49226390189 is an equidigital number, since it uses as much as digits as its factorization.

49226390189 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1679616, while the sum is 53.

The spelling of 49226390189 in words is "forty-nine billion, two hundred twenty-six million, three hundred ninety thousand, one hundred eighty-nine".