78903621883 has 2 divisors, whose sum is σ = 78903621884. Its totient is φ = 78903621882.

The previous prime is 78903621871. The next prime is 78903621917. The reversal of 78903621883 is 38812630987.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 78903621883 - 2⁹ = 78903621371 is a prime.

It is not a weakly prime, because it can be changed into another prime (78903621833) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 39451810941 + 39451810942.

It is an arithmetic number, because the mean of its divisors is an integer number (39451810942).

Almost surely, 2^78903621883 is an apocalyptic number.

78903621883 is a deficient number, since it is larger than the sum of its proper divisors (1).

78903621883 is an equidigital number, since it uses as much as digits as its factorization.

78903621883 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3483648, while the sum is 55.

The spelling of 78903621883 in words is "seventy-eight billion, nine hundred three million, six hundred twenty-one thousand, eight hundred eighty-three".