249426483821 has 8 divisors (see below), whose sum is σ = 249588031104. Its totient is φ = 249264991360.

The previous prime is 249426483799. The next prime is 249426483851. The reversal of 249426483821 is 128384624942.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-249426483821 is a prime.

It is a super-3 number, since 3×249426483821³ (a number of 35 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (249426483851) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12500765 + ... + 12520701.

It is an arithmetic number, because the mean of its divisors is an integer number (31198503888).

Almost surely, 2^249426483821 is an apocalyptic number.

It is an amenable number.

249426483821 is a deficient number, since it is larger than the sum of its proper divisors (161547283).

249426483821 is a wasteful number, since it uses less digits than its factorization.

249426483821 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27411.

The product of its digits is 5308416, while the sum is 53.

The spelling of 249426483821 in words is "two hundred forty-nine billion, four hundred twenty-six million, four hundred eighty-three thousand, eight hundred twenty-one".