364681421309 has 2 divisors, whose sum is σ = 364681421310. Its totient is φ = 364681421308.

The previous prime is 364681421303. The next prime is 364681421359. The reversal of 364681421309 is 903124186463.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 327867324409 + 36814096900 = 572597^2 + 191870^2 .

It is a cyclic number.

It is not a de Polignac number, because 364681421309 - 2²⁰ = 364680372733 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (364681421303) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 182340710654 + 182340710655.

It is an arithmetic number, because the mean of its divisors is an integer number (182340710655).

Almost surely, 2^364681421309 is an apocalyptic number.

It is an amenable number.

364681421309 is a deficient number, since it is larger than the sum of its proper divisors (1).

364681421309 is an equidigital number, since it uses as much as digits as its factorization.

364681421309 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 746496, while the sum is 47.

The spelling of 364681421309 in words is "three hundred sixty-four billion, six hundred eighty-one million, four hundred twenty-one thousand, three hundred nine".