10209186349 has 2 divisors, whose sum is σ = 10209186350. Its totient is φ = 10209186348.

The previous prime is 10209186313. The next prime is 10209186359. The reversal of 10209186349 is 94368190201.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 5445702025 + 4763484324 = 73795^2 + 69018^2 .

It is a cyclic number.

It is not a de Polignac number, because 10209186349 - 2¹³ = 10209178157 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (10209186359) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5104593174 + 5104593175.

It is an arithmetic number, because the mean of its divisors is an integer number (5104593175).

Almost surely, 2^10209186349 is an apocalyptic number.

It is an amenable number.

10209186349 is a deficient number, since it is larger than the sum of its proper divisors (1).

10209186349 is an equidigital number, since it uses as much as digits as its factorization.

10209186349 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 93312, while the sum is 43.

The spelling of 10209186349 in words is "ten billion, two hundred nine million, one hundred eighty-six thousand, three hundred forty-nine".