249671884966 has 32 divisors (see below), whose sum is σ = 431254393920. Its totient is φ = 106191315456.

The previous prime is 249671884927. The next prime is 249671884967. The reversal of 249671884966 is 669488176942.

It is a junction number, because it is equal to n+sod(n) for n = 249671884895 and 249671884904.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (249671884967) 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, 7634586 + ... + 7667218.

It is an arithmetic number, because the mean of its divisors is an integer number (13476699810).

Almost surely, 2^249671884966 is an apocalyptic number.

249671884966 is a deficient number, since it is larger than the sum of its proper divisors (181582508954).

249671884966 is a wasteful number, since it uses less digits than its factorization.

249671884966 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36768.

The product of its digits is 250822656, while the sum is 70.

The spelling of 249671884966 in words is "two hundred forty-nine billion, six hundred seventy-one million, eight hundred eighty-four thousand, nine hundred sixty-six".