17978001042 has 8 divisors (see below), whose sum is σ = 35956002096. Its totient is φ = 5992667012.

The previous prime is 17978001023. The next prime is 17978001047. The reversal of 17978001042 is 24010087971.

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

17978001042 is an admirable number.

It is not an unprimeable number, because it can be changed into a prime (17978001047) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1498166748 + ... + 1498166759.

It is an arithmetic number, because the mean of its divisors is an integer number (4494500262).

Almost surely, 2^17978001042 is an apocalyptic number.

17978001042 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

17978001042 is a wasteful number, since it uses less digits than its factorization.

17978001042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2996333512.

The product of its (nonzero) digits is 28224, while the sum is 39.

The spelling of 17978001042 in words is "seventeen billion, nine hundred seventy-eight million, one thousand, forty-two".