17987394096 has 60 divisors (see below), whose sum is σ = 57531112912. Its totient is φ = 5139255168.

The previous prime is 17987394079. The next prime is 17987394097. The reversal of 17987394096 is 69049378971.

It is a Harshad number since it is a multiple of its sum of digits (63).

It is not an unprimeable number, because it can be changed into a prime (17987394097) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 8921311 + ... + 8923326.

Almost surely, 2^17987394096 is an apocalyptic number.

17987394096 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

17987394096 is an abundant number, since it is smaller than the sum of its proper divisors (39543718816).

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

17987394096 is a wasteful number, since it uses less digits than its factorization.

17987394096 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17844658 (or 17844649 counting only the distinct ones).

The product of its (nonzero) digits is 20575296, while the sum is 63.

The spelling of 17987394096 in words is "seventeen billion, nine hundred eighty-seven million, three hundred ninety-four thousand, ninety-six".