17977010990 has 8 divisors (see below), whose sum is σ = 32358619800. Its totient is φ = 7190804392.

The previous prime is 17977010969. The next prime is 17977011023. The reversal of 17977010990 is 9901077971.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 898850540 + ... + 898850559.

It is an arithmetic number, because the mean of its divisors is an integer number (4044827475).

Almost surely, 2^17977010990 is an apocalyptic number.

17977010990 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

17977010990 is a deficient number, since it is larger than the sum of its proper divisors (14381608810).

17977010990 is a wasteful number, since it uses less digits than its factorization.

17977010990 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1797701106.

The product of its (nonzero) digits is 250047, while the sum is 50.

The spelling of 17977010990 in words is "seventeen billion, nine hundred seventy-seven million, ten thousand, nine hundred ninety".