17485394612 has 72 divisors (see below), whose sum is σ = 36833892480. Its totient is φ = 7236915840.

The previous prime is 17485394527. The next prime is 17485394617. The reversal of 17485394612 is 21649358471.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (17485394617) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 738437 + ... + 761747.

It is an arithmetic number, because the mean of its divisors is an integer number (511581840).

Almost surely, 2^17485394612 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 17485394612, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (18416946240).

17485394612 is an abundant number, since it is smaller than the sum of its proper divisors (19348497868).

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

17485394612 is a wasteful number, since it uses less digits than its factorization.

17485394612 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23461 (or 23452 counting only the distinct ones).

The product of its digits is 1451520, while the sum is 50.

The spelling of 17485394612 in words is "seventeen billion, four hundred eighty-five million, three hundred ninety-four thousand, six hundred twelve".