7812293953 has 2 divisors, whose sum is σ = 7812293954. Its totient is φ = 7812293952.

The previous prime is 7812293933. The next prime is 7812293959. The reversal of 7812293953 is 3593922187.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 7587803664 + 224490289 = 87108^2 + 14983^2 .

It is an emirp because it is prime and its reverse (3593922187) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 7812293953 - 2⁵ = 7812293921 is a prime.

It is a super-2 number, since 2×7812293953² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 7812293897 and 7812293906.

It is not a weakly prime, because it can be changed into another prime (7812293959) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3906146976 + 3906146977.

It is an arithmetic number, because the mean of its divisors is an integer number (3906146977).

Almost surely, 2^7812293953 is an apocalyptic number.

It is an amenable number.

7812293953 is a deficient number, since it is larger than the sum of its proper divisors (1).

7812293953 is an equidigital number, since it uses as much as digits as its factorization.

7812293953 is an evil number, because the sum of its binary digits is even.

The product of its digits is 816480, while the sum is 49.

The square root of 7812293953 is about 88387.1820627856. The cubic root of 7812293953 is about 1984.2338705816.

The spelling of 7812293953 in words is "seven billion, eight hundred twelve million, two hundred ninety-three thousand, nine hundred fifty-three".