7812999983 has 2 divisors, whose sum is σ = 7812999984. Its totient is φ = 7812999982.

The previous prime is 7812999959. The next prime is 7813000001. The reversal of 7812999983 is 3899992187.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 7812999983 - 2⁶ = 7812999919 is a prime.

It is a super-2 number, since 2×7812999983² (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 (7812999923) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3906499991 + 3906499992.

It is an arithmetic number, because the mean of its divisors is an integer number (3906499992).

Almost surely, 2^7812999983 is an apocalyptic number.

7812999983 is a deficient number, since it is larger than the sum of its proper divisors (1).

7812999983 is an equidigital number, since it uses as much as digits as its factorization.

7812999983 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 17635968, while the sum is 65.

The square root of 7812999983 is about 88391.1759340264. The cubic root of 7812999983 is about 1984.2936433128.

The spelling of 7812999983 in words is "seven billion, eight hundred twelve million, nine hundred ninety-nine thousand, nine hundred eighty-three".