17319440920 has 32 divisors (see below), whose sum is σ = 39131812800. Its totient is φ = 6898786048.

The previous prime is 17319440911. The next prime is 17319440927. The reversal of 17319440920 is 2904491371.

It is a Harshad number since it is a multiple of its sum of digits (40).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (17319440927) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 896269 + ... + 915388.

It is an arithmetic number, because the mean of its divisors is an integer number (1222869150).

Almost surely, 2^17319440920 is an apocalyptic number.

17319440920 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

17319440920 is an abundant number, since it is smaller than the sum of its proper divisors (21812371880).

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

17319440920 is a wasteful number, since it uses less digits than its factorization.

17319440920 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1811907 (or 1811903 counting only the distinct ones).

The product of its (nonzero) digits is 54432, while the sum is 40.

The spelling of 17319440920 in words is "seventeen billion, three hundred nineteen million, four hundred forty thousand, nine hundred twenty".