17943242990 has 32 divisors (see below), whose sum is σ = 35094435840. Its totient is φ = 6580202400.

The previous prime is 17943242963. The next prime is 17943243001. The reversal of 17943242990 is 9924234971.

It is a super-4 number, since 4×17943242990⁴ (a number of 42 digits) contains 4444 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1517306 + ... + 1529085.

It is an arithmetic number, because the mean of its divisors is an integer number (1096701120).

Almost surely, 2^17943242990 is an apocalyptic number.

17943242990 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

17943242990 is a deficient number, since it is larger than the sum of its proper divisors (17151192850).

17943242990 is a wasteful number, since it uses less digits than its factorization.

17943242990 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3046448.

The product of its (nonzero) digits is 979776, while the sum is 50.

The spelling of 17943242990 in words is "seventeen billion, nine hundred forty-three million, two hundred forty-two thousand, nine hundred ninety".