18976914851 has 2 divisors, whose sum is σ = 18976914852. Its totient is φ = 18976914850.

The previous prime is 18976914823. The next prime is 18976914857. The reversal of 18976914851 is 15841967981.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 18976914851 - 2¹⁰ = 18976913827 is a prime.

It is not a weakly prime, because it can be changed into another prime (18976914857) 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, 9488457425 + 9488457426.

It is an arithmetic number, because the mean of its divisors is an integer number (9488457426).

Almost surely, 2^18976914851 is an apocalyptic number.

18976914851 is a deficient number, since it is larger than the sum of its proper divisors (1).

18976914851 is an equidigital number, since it uses as much as digits as its factorization.

18976914851 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 4354560, while the sum is 59.

The spelling of 18976914851 in words is "eighteen billion, nine hundred seventy-six million, nine hundred fourteen thousand, eight hundred fifty-one".