249248974996 has 48 divisors (see below), whose sum is σ = 519299630080. Its totient is φ = 102426716160.

The previous prime is 249248974981. The next prime is 249248975023. The reversal of 249248974996 is 699479842942.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1222605 + ... + 1411828.

Almost surely, 2^249248974996 is an apocalyptic number.

It is an amenable number.

249248974996 is an abundant number, since it is smaller than the sum of its proper divisors (270050655084).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

249248974996 is a wasteful number, since it uses less digits than its factorization.

249248974996 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2634584 (or 2634582 counting only the distinct ones).

The product of its digits is 564350976, while the sum is 73.

The spelling of 249248974996 in words is "two hundred forty-nine billion, two hundred forty-eight million, nine hundred seventy-four thousand, nine hundred ninety-six".