249345473480 has 64 divisors (see below), whose sum is σ = 573071466240. Its totient is φ = 97597804032.

The previous prime is 249345473479. The next prime is 249345473497. The reversal of 249345473480 is 84374543942.

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, 14567087 + ... + 14584193.

It is an arithmetic number, because the mean of its divisors is an integer number (8954241660).

Almost surely, 2^249345473480 is an apocalyptic number.

249345473480 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

249345473480 is an abundant number, since it is smaller than the sum of its proper divisors (323725992760).

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

249345473480 is a wasteful number, since it uses less digits than its factorization.

249345473480 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24918 (or 24914 counting only the distinct ones).

The product of its (nonzero) digits is 11612160, while the sum is 53.

The spelling of 249345473480 in words is "two hundred forty-nine billion, three hundred forty-five million, four hundred seventy-three thousand, four hundred eighty".