17842745020 has 24 divisors (see below), whose sum is σ = 38678467968. Its totient is φ = 6906868800.

The previous prime is 17842744999. The next prime is 17842745021. The reversal of 17842745020 is 2054724871.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (17842745021) 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 7 ways as a sum of consecutive naturals, for example, 14388691 + ... + 14389930.

It is an arithmetic number, because the mean of its divisors is an integer number (1611602832).

Almost surely, 2^17842745020 is an apocalyptic number.

17842745020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

17842745020 is an abundant number, since it is smaller than the sum of its proper divisors (20835722948).

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

17842745020 is a wasteful number, since it uses less digits than its factorization.

17842745020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28778661 (or 28778659 counting only the distinct ones).

The product of its (nonzero) digits is 125440, while the sum is 40.

The spelling of 17842745020 in words is "seventeen billion, eight hundred forty-two million, seven hundred forty-five thousand, twenty".