17979193404 has 192 divisors, whose sum is σ = 50396774400. Its totient is φ = 5522743296.

The previous prime is 17979193367. The next prime is 17979193409. The reversal of 17979193404 is 40439197971.

It is a hoax number, since the sum of its digits (54) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (17979193409) 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 63 ways as a sum of consecutive naturals, for example, 19352812 + ... + 19353740.

It is an arithmetic number, because the mean of its divisors is an integer number (262483200).

Almost surely, 2^17979193404 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 17979193404, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (25198387200).

17979193404 is an abundant number, since it is smaller than the sum of its proper divisors (32417580996).

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

17979193404 is a wasteful number, since it uses less digits than its factorization.

17979193404 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1169 (or 1161 counting only the distinct ones).

The product of its (nonzero) digits is 1714608, while the sum is 54.

The spelling of 17979193404 in words is "seventeen billion, nine hundred seventy-nine million, one hundred ninety-three thousand, four hundred four".