51846719923 has 2 divisors, whose sum is σ = 51846719924. Its totient is φ = 51846719922.

The previous prime is 51846719909. The next prime is 51846719933. The reversal of 51846719923 is 32991764815.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-51846719923 is a prime.

It is not a weakly prime, because it can be changed into another prime (51846719933) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25923359961 + 25923359962.

It is an arithmetic number, because the mean of its divisors is an integer number (25923359962).

Almost surely, 2^51846719923 is an apocalyptic number.

51846719923 is a deficient number, since it is larger than the sum of its proper divisors (1).

51846719923 is an equidigital number, since it uses as much as digits as its factorization.

51846719923 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3265920, while the sum is 55.

The spelling of 51846719923 in words is "fifty-one billion, eight hundred forty-six million, seven hundred nineteen thousand, nine hundred twenty-three".