7819740823 has 2 divisors, whose sum is σ = 7819740824. Its totient is φ = 7819740822.

The previous prime is 7819740811. The next prime is 7819740827. The reversal of 7819740823 is 3280479187.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 7819740823 - 2¹³ = 7819732631 is a prime.

It is a super-2 number, since 2×7819740823² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (7819740827) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3909870411 + 3909870412.

It is an arithmetic number, because the mean of its divisors is an integer number (3909870412).

Almost surely, 2^7819740823 is an apocalyptic number.

7819740823 is a deficient number, since it is larger than the sum of its proper divisors (1).

7819740823 is an equidigital number, since it uses as much as digits as its factorization.

7819740823 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 677376, while the sum is 49.

The square root of 7819740823 is about 88429.2984423149. The cubic root of 7819740823 is about 1984.8641438066.

The spelling of 7819740823 in words is "seven billion, eight hundred nineteen million, seven hundred forty thousand, eight hundred twenty-three".