928172196864 has 352 divisors, whose sum is σ = 3156532953600. Its totient is φ = 266459258880.

The previous prime is 928172196863. The next prime is 928172196869. The reversal of 928172196864 is 468691271829.

It is a tau number, because it is divible by the number of its divisors (352).

It is a Smith number, since the sum of its digits (63) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (928172196863) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 5698119 + ... + 5858745.

Almost surely, 2^928172196864 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 928172196864, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1578266476800).

928172196864 is an abundant number, since it is smaller than the sum of its proper divisors (2228360756736).

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

928172196864 is a wasteful number, since it uses less digits than its factorization.

928172196864 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 160686 (or 160662 counting only the distinct ones).

The product of its digits is 20901888, while the sum is 63.

The spelling of 928172196864 in words is "nine hundred twenty-eight billion, one hundred seventy-two million, one hundred ninety-six thousand, eight hundred sixty-four".