7678451983 has 2 divisors, whose sum is σ = 7678451984. Its totient is φ = 7678451982.

The previous prime is 7678451953. The next prime is 7678452017. The reversal of 7678451983 is 3891548767.

It is a weak prime.

It is an emirp because it is prime and its reverse (3891548767) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 7678451983 - 2²⁹ = 7141581071 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (7678451923) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3839225991 + 3839225992.

It is an arithmetic number, because the mean of its divisors is an integer number (3839225992).

Almost surely, 2^7678451983 is an apocalyptic number.

7678451983 is a deficient number, since it is larger than the sum of its proper divisors (1).

7678451983 is an equidigital number, since it uses as much as digits as its factorization.

7678451983 is an evil number, because the sum of its binary digits is even.

The product of its digits is 10160640, while the sum is 58.

The square root of 7678451983 is about 87626.7766324883. The cubic root of 7678451983 is about 1972.8370902021.

The spelling of 7678451983 in words is "seven billion, six hundred seventy-eight million, four hundred fifty-one thousand, nine hundred eighty-three".