19495141933 has 2 divisors, whose sum is σ = 19495141934. Its totient is φ = 19495141932.

The previous prime is 19495141909. The next prime is 19495141949. The reversal of 19495141933 is 33914159491.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 17550155529 + 1944986404 = 132477^2 + 44102^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-19495141933 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (19495141333) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9747570966 + 9747570967.

It is an arithmetic number, because the mean of its divisors is an integer number (9747570967).

Almost surely, 2^19495141933 is an apocalyptic number.

It is an amenable number.

19495141933 is a deficient number, since it is larger than the sum of its proper divisors (1).

19495141933 is an equidigital number, since it uses as much as digits as its factorization.

19495141933 is an evil number, because the sum of its binary digits is even.

The product of its digits is 524880, while the sum is 49.

The spelling of 19495141933 in words is "nineteen billion, four hundred ninety-five million, one hundred forty-one thousand, nine hundred thirty-three".