249136941472 has 48 divisors (see below), whose sum is σ = 491300548200. Its totient is φ = 124362408960.

The previous prime is 249136941433. The next prime is 249136941479. The reversal of 249136941472 is 274149631942.

It can be written as a sum of positive squares in 4 ways, for example, as 241477891216 + 7659050256 = 491404^2 + 87516^2 .

It is not an unprimeable number, because it can be changed into a prime (249136941479) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 70356022 + ... + 70359562.

Almost surely, 2^249136941472 is an apocalyptic number.

It is an amenable number.

249136941472 is a deficient number, since it is larger than the sum of its proper divisors (242163606728).

249136941472 is a wasteful number, since it uses less digits than its factorization.

249136941472 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6569 (or 6561 counting only the distinct ones).

The product of its digits is 2612736, while the sum is 52.

The spelling of 249136941472 in words is "two hundred forty-nine billion, one hundred thirty-six million, nine hundred forty-one thousand, four hundred seventy-two".