17440047312 has 80 divisors (see below), whose sum is σ = 47735998272. Its totient is φ = 5467678720.

The previous prime is 17440047311. The next prime is 17440047337. The reversal of 17440047312 is 21374004471.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (17440047311) 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, 1353862 + ... + 1366682.

Almost surely, 2^17440047312 is an apocalyptic number.

17440047312 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 17440047312, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (23867999136).

17440047312 is an abundant number, since it is smaller than the sum of its proper divisors (30295950960).

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

17440047312 is a wasteful number, since it uses less digits than its factorization.

17440047312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14516 (or 14510 counting only the distinct ones).

The product of its (nonzero) digits is 18816, while the sum is 33.

The spelling of 17440047312 in words is "seventeen billion, four hundred forty million, forty-seven thousand, three hundred twelve".