813780753119 has 2 divisors, whose sum is σ = 813780753120. Its totient is φ = 813780753118.

The previous prime is 813780753067. The next prime is 813780753127. The reversal of 813780753119 is 911357087318.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 813780753119 - 2²⁸ = 813512317663 is a prime.

It is a super-2 number, since 2×813780753119² (a number of 25 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 (813780783119) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 406890376559 + 406890376560.

It is an arithmetic number, because the mean of its divisors is an integer number (406890376560).

Almost surely, 2^813780753119 is an apocalyptic number.

813780753119 is a deficient number, since it is larger than the sum of its proper divisors (1).

813780753119 is an equidigital number, since it uses as much as digits as its factorization.

813780753119 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1270080, while the sum is 53.

The spelling of 813780753119 in words is "eight hundred thirteen billion, seven hundred eighty million, seven hundred fifty-three thousand, one hundred nineteen".