254919749993 has 16 divisors (see below), whose sum is σ = 280222924800. Its totient is φ = 230821675920.

The previous prime is 254919749989. The next prime is 254919749999. The reversal of 254919749993 is 399947919452.

It is not a de Polignac number, because 254919749993 - 2² = 254919749989 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (254919749999) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 330878 + ... + 786968.

It is an arithmetic number, because the mean of its divisors is an integer number (17513932800).

Almost surely, 2^254919749993 is an apocalyptic number.

254919749993 is a gapful number since it is divisible by the number (23) formed by its first and last digit.

It is an amenable number.

254919749993 is a deficient number, since it is larger than the sum of its proper divisors (25303174807).

254919749993 is a wasteful number, since it uses less digits than its factorization.

254919749993 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 457412.

The product of its digits is 198404640, while the sum is 71.

The spelling of 254919749993 in words is "two hundred fifty-four billion, nine hundred nineteen million, seven hundred forty-nine thousand, nine hundred ninety-three".