254997869993 has 2 divisors, whose sum is σ = 254997869994. Its totient is φ = 254997869992.

The previous prime is 254997869983. The next prime is 254997870031. The reversal of 254997869993 is 399968799452.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 250068004624 + 4929865369 = 500068^2 + 70213^2 .

It is a cyclic number.

It is not a de Polignac number, because 254997869993 - 2¹⁰ = 254997868969 is a prime.

It is not a weakly prime, because it can be changed into another prime (254997869933) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 127498934996 + 127498934997.

It is an arithmetic number, because the mean of its divisors is an integer number (127498934997).

Almost surely, 2^254997869993 is an apocalyptic number.

It is an amenable number.

254997869993 is a deficient number, since it is larger than the sum of its proper divisors (1).

254997869993 is an equidigital number, since it uses as much as digits as its factorization.

254997869993 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2380855680, while the sum is 80.

The spelling of 254997869993 in words is "two hundred fifty-four billion, nine hundred ninety-seven million, eight hundred sixty-nine thousand, nine hundred ninety-three".