17897357142 has 96 divisors (see below), whose sum is σ = 44626682880. Its totient is φ = 5077961280.

The previous prime is 17897357129. The next prime is 17897357143. The reversal of 17897357142 is 24175379871.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (17897357143) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 18206383 + ... + 18207365.

It is an arithmetic number, because the mean of its divisors is an integer number (464861280).

Almost surely, 2^17897357142 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 17897357142, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (22313341440).

17897357142 is an abundant number, since it is smaller than the sum of its proper divisors (26729325738).

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

17897357142 is a wasteful number, since it uses less digits than its factorization.

17897357142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1858 (or 1855 counting only the distinct ones).

The product of its digits is 2963520, while the sum is 54.

The spelling of 17897357142 in words is "seventeen billion, eight hundred ninety-seven million, three hundred fifty-seven thousand, one hundred forty-two".