999997672254751 has 2 divisors, whose sum is σ = 999997672254752. Its totient is φ = 999997672254750.

The previous prime is 999997672254743. The next prime is 999997672254781. The reversal of 999997672254751 is 157452276799999.

It is a weak prime.

It is an emirp because it is prime and its reverse (157452276799999) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 999997672254751 - 2³ = 999997672254743 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (999997672254781) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 499998836127375 + 499998836127376.

It is an arithmetic number, because the mean of its divisors is an integer number (499998836127376).

Almost surely, 2^{999997672254751} is an apocalyptic number.

999997672254751 is a deficient number, since it is larger than the sum of its proper divisors (1).

999997672254751 is an equidigital number, since it uses as much as digits as its factorization.

999997672254751 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 48609136800, while the sum is 91.

The spelling of 999997672254751 in words is "nine hundred ninety-nine trillion, nine hundred ninety-seven billion, six hundred seventy-two million, two hundred fifty-four thousand, seven hundred fifty-one".