17742738090 has 128 divisors (see below), whose sum is σ = 54802759680. Its totient is φ = 3567859200.

The previous prime is 17742738047. The next prime is 17742738113. The reversal of 17742738090 is 9083724771.

17742738090 is digitally balanced in base 5, because in such base it contains all the possibile digits an equal number of times.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 52275 + ... + 195494.

It is an arithmetic number, because the mean of its divisors is an integer number (428146560).

Almost surely, 2^17742738090 is an apocalyptic number.

17742738090 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

17742738090 is an abundant number, since it is smaller than the sum of its proper divisors (37060021590).

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

17742738090 is a wasteful number, since it uses less digits than its factorization.

17742738090 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 247828.

The product of its (nonzero) digits is 592704, while the sum is 48.

The spelling of 17742738090 in words is "seventeen billion, seven hundred forty-two million, seven hundred thirty-eight thousand, ninety".