49226390989 has 2 divisors, whose sum is σ = 49226390990. Its totient is φ = 49226390988.

The previous prime is 49226390933. The next prime is 49226391023. The reversal of 49226390989 is 98909362294.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 32211275625 + 17015115364 = 179475^2 + 130442^2 .

It is a cyclic number.

It is not a de Polignac number, because 49226390989 - 2¹⁷ = 49226259917 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (49226390189) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 24613195494 + 24613195495.

It is an arithmetic number, because the mean of its divisors is an integer number (24613195495).

Almost surely, 2^49226390989 is an apocalyptic number.

It is an amenable number.

49226390989 is a deficient number, since it is larger than the sum of its proper divisors (1).

49226390989 is an equidigital number, since it uses as much as digits as its factorization.

49226390989 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 15116544, while the sum is 61.

The spelling of 49226390989 in words is "forty-nine billion, two hundred twenty-six million, three hundred ninety thousand, nine hundred eighty-nine".