249049273171 has 16 divisors (see below), whose sum is σ = 252732856320. Its totient is φ = 245399300640.

The previous prime is 249049273147. The next prime is 249049273211. The reversal of 249049273171 is 171372940942.

It is a cyclic number.

It is not a de Polignac number, because 249049273171 - 2¹⁵ = 249049240403 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (249049273871) 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, 11289370 + ... + 11311408.

It is an arithmetic number, because the mean of its divisors is an integer number (15795803520).

Almost surely, 2^249049273171 is an apocalyptic number.

249049273171 is a deficient number, since it is larger than the sum of its proper divisors (3683583149).

249049273171 is a wasteful number, since it uses less digits than its factorization.

249049273171 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22794.

The product of its (nonzero) digits is 762048, while the sum is 49.

The spelling of 249049273171 in words is "two hundred forty-nine billion, forty-nine million, two hundred seventy-three thousand, one hundred seventy-one".