17928527997 has 8 divisors (see below), whose sum is σ = 24017997280. Its totient is φ = 11895705360.

The previous prime is 17928527977. The next prime is 17928527999. The reversal of 17928527997 is 79972582971.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 17928527997 - 2¹¹ = 17928525949 is a prime.

It is a super-2 number, since 2×17928527997² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (17928527999) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14160922 + ... + 14162187.

It is an arithmetic number, because the mean of its divisors is an integer number (3002249660).

Almost surely, 2^17928527997 is an apocalyptic number.

It is an amenable number.

17928527997 is a deficient number, since it is larger than the sum of its proper divisors (6089469283).

17928527997 is a wasteful number, since it uses less digits than its factorization.

17928527997 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28323323.

The product of its digits is 40007520, while the sum is 66.

The spelling of 17928527997 in words is "seventeen billion, nine hundred twenty-eight million, five hundred twenty-seven thousand, nine hundred ninety-seven".