1688983858090 has 32 divisors (see below), whose sum is σ = 3072638841984. Its totient is φ = 668395143360.

The previous prime is 1688983858057. The next prime is 1688983858117. The reversal of 1688983858090 is 908583898861.

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, 232606 + ... + 1852585.

It is an arithmetic number, because the mean of its divisors is an integer number (96019963812).

Almost surely, 2^{1688983858090} is an apocalyptic number.

1688983858090 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1688983858090 is a deficient number, since it is larger than the sum of its proper divisors (1383654983894).

1688983858090 is a wasteful number, since it uses less digits than its factorization.

1688983858090 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2086062.

The product of its (nonzero) digits is 238878720, while the sum is 73.

The spelling of 1688983858090 in words is "one trillion, six hundred eighty-eight billion, nine hundred eighty-three million, eight hundred fifty-eight thousand, ninety".