223795781519 has 2 divisors, whose sum is σ = 223795781520. Its totient is φ = 223795781518.

The previous prime is 223795781423. The next prime is 223795781551. The reversal of 223795781519 is 915187597322.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 223795781519 - 2¹² = 223795777423 is a prime.

It is a super-2 number, since 2×223795781519² (a number of 24 digits) contains 22 as substring.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (223795711519) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 111897890759 + 111897890760.

It is an arithmetic number, because the mean of its divisors is an integer number (111897890760).

Almost surely, 2^223795781519 is an apocalyptic number.

223795781519 is a deficient number, since it is larger than the sum of its proper divisors (1).

223795781519 is an equidigital number, since it uses as much as digits as its factorization.

223795781519 is an evil number, because the sum of its binary digits is even.

The product of its digits is 9525600, while the sum is 59.

The spelling of 223795781519 in words is "two hundred twenty-three billion, seven hundred ninety-five million, seven hundred eighty-one thousand, five hundred nineteen".