309196649401 has 2 divisors, whose sum is σ = 309196649402. Its totient is φ = 309196649400.

The previous prime is 309196649341. The next prime is 309196649407. The reversal of 309196649401 is 104946691903.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 199469424400 + 109727225001 = 446620^2 + 331251^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-309196649401 is a prime.

It is not a weakly prime, because it can be changed into another prime (309196649407) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 154598324700 + 154598324701.

It is an arithmetic number, because the mean of its divisors is an integer number (154598324701).

Almost surely, 2^309196649401 is an apocalyptic number.

It is an amenable number.

309196649401 is a deficient number, since it is larger than the sum of its proper divisors (1).

309196649401 is an equidigital number, since it uses as much as digits as its factorization.

309196649401 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1259712, while the sum is 52.

The spelling of 309196649401 in words is "three hundred nine billion, one hundred ninety-six million, six hundred forty-nine thousand, four hundred one".