249807460361 has 8 divisors (see below), whose sum is σ = 250759582920. Its totient is φ = 248855512192.

The previous prime is 249807460327. The next prime is 249807460369. The reversal of 249807460361 is 163064708942.

It can be written as a sum of positive squares in 4 ways, for example, as 1484637961 + 248322822400 = 38531^2 + 498320^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 249807460361 - 2¹⁰ = 249807459337 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (249807460369) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3318011 + ... + 3392463.

It is an arithmetic number, because the mean of its divisors is an integer number (31344947865).

Almost surely, 2^249807460361 is an apocalyptic number.

It is an amenable number.

249807460361 is a deficient number, since it is larger than the sum of its proper divisors (952122559).

249807460361 is a wasteful number, since it uses less digits than its factorization.

249807460361 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 87195.

The product of its (nonzero) digits is 1741824, while the sum is 50.

The spelling of 249807460361 in words is "two hundred forty-nine billion, eight hundred seven million, four hundred sixty thousand, three hundred sixty-one".