18950826229 has 2 divisors, whose sum is σ = 18950826230. Its totient is φ = 18950826228.

The previous prime is 18950826221. The next prime is 18950826247. The reversal of 18950826229 is 92262805981.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 14050546225 + 4900280004 = 118535^2 + 70002^2 .

It is a cyclic number.

It is not a de Polignac number, because 18950826229 - 2³ = 18950826221 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (18950826221) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9475413114 + 9475413115.

It is an arithmetic number, because the mean of its divisors is an integer number (9475413115).

Almost surely, 2^18950826229 is an apocalyptic number.

It is an amenable number.

18950826229 is a deficient number, since it is larger than the sum of its proper divisors (1).

18950826229 is an equidigital number, since it uses as much as digits as its factorization.

18950826229 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1244160, while the sum is 52.

The spelling of 18950826229 in words is "eighteen billion, nine hundred fifty million, eight hundred twenty-six thousand, two hundred twenty-nine".