249470839375 has 10 divisors (see below), whose sum is σ = 311738761664. Its totient is φ = 199576671000.

The previous prime is 249470839339. The next prime is 249470839381. The reversal of 249470839375 is 573938074942.

It is not a de Polignac number, because 249470839375 - 2¹⁷ = 249470708303 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 199576047 + ... + 199577296.

Almost surely, 2^249470839375 is an apocalyptic number.

249470839375 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

249470839375 is a deficient number, since it is larger than the sum of its proper divisors (62267922289).

249470839375 is an frugal number, since it uses more digits than its factorization.

249470839375 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 399153363 (or 399153348 counting only the distinct ones).

The product of its (nonzero) digits is 45722880, while the sum is 61.

The spelling of 249470839375 in words is "two hundred forty-nine billion, four hundred seventy million, eight hundred thirty-nine thousand, three hundred seventy-five".