17900797794 has 16 divisors (see below), whose sum is σ = 39056286240. Its totient is φ = 5424484160.

The previous prime is 17900797793. The next prime is 17900797799. The reversal of 17900797794 is 49779700971.

It is not an unprimeable number, because it can be changed into a prime (17900797793) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 135612039 + ... + 135612170.

It is an arithmetic number, because the mean of its divisors is an integer number (2441017890).

Almost surely, 2^17900797794 is an apocalyptic number.

17900797794 is an abundant number, since it is smaller than the sum of its proper divisors (21155488446).

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

17900797794 is a wasteful number, since it uses less digits than its factorization.

17900797794 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 271224225.

The product of its (nonzero) digits is 7001316, while the sum is 60.

The spelling of 17900797794 in words is "seventeen billion, nine hundred million, seven hundred ninety-seven thousand, seven hundred ninety-four".