249143423467 has 8 divisors (see below), whose sum is σ = 252670519296. Its totient is φ = 245637639912.

The previous prime is 249143423447. The next prime is 249143423491. The reversal of 249143423467 is 764324341942.

249143423467 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 249143423467 - 2¹¹ = 249143421419 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 249143423467.

It is not an unprimeable number, because it can be changed into a prime (249143423447) 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 in 7 ways as a sum of consecutive naturals, for example, 5304523 + ... + 5351284.

It is an arithmetic number, because the mean of its divisors is an integer number (31583814912).

Almost surely, 2^249143423467 is an apocalyptic number.

249143423467 is a deficient number, since it is larger than the sum of its proper divisors (3527095829).

249143423467 is a wasteful number, since it uses less digits than its factorization.

249143423467 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10656137.

The product of its digits is 3483648, while the sum is 49.

The spelling of 249143423467 in words is "two hundred forty-nine billion, one hundred forty-three million, four hundred twenty-three thousand, four hundred sixty-seven".