249481783363 has 4 divisors (see below), whose sum is σ = 262612403560. Its totient is φ = 236351163168.

The previous prime is 249481783349. The next prime is 249481783387. The reversal of 249481783363 is 363387184942.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 249481783363 - 2²⁹ = 248944912451 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 249481783298 and 249481783307.

It is not an unprimeable number, because it can be changed into a prime (249481780363) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6565310070 + ... + 6565310107.

It is an arithmetic number, because the mean of its divisors is an integer number (65653100890).

Almost surely, 2^249481783363 is an apocalyptic number.

249481783363 is a deficient number, since it is larger than the sum of its proper divisors (13130620197).

249481783363 is a wasteful number, since it uses less digits than its factorization.

249481783363 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13130620196.

The product of its digits is 20901888, while the sum is 58.

The spelling of 249481783363 in words is "two hundred forty-nine billion, four hundred eighty-one million, seven hundred eighty-three thousand, three hundred sixty-three".