19064962249 has 2 divisors, whose sum is σ = 19064962250. Its totient is φ = 19064962248.

The previous prime is 19064962243. The next prime is 19064962309. The reversal of 19064962249 is 94226946091.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 17055054025 + 2009908224 = 130595^2 + 44832^2 .

It is an emirp because it is prime and its reverse (94226946091) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-19064962249 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 19064962196 and 19064962205.

It is not a weakly prime, because it can be changed into another prime (19064962243) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9532481124 + 9532481125.

It is an arithmetic number, because the mean of its divisors is an integer number (9532481125).

Almost surely, 2^19064962249 is an apocalyptic number.

It is an amenable number.

19064962249 is a deficient number, since it is larger than the sum of its proper divisors (1).

19064962249 is an equidigital number, since it uses as much as digits as its factorization.

19064962249 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1679616, while the sum is 52.

The spelling of 19064962249 in words is "nineteen billion, sixty-four million, nine hundred sixty-two thousand, two hundred forty-nine".