19398909286090 has 16 divisors (see below), whose sum is σ = 35861767437672. Its totient is φ = 7549845776064.

The previous prime is 19398909285991. The next prime is 19398909286117. The reversal of 19398909286090 is 9068290989391.

It can be written as a sum of positive squares in 4 ways, for example, as 18678724528321 + 720184757769 = 4321889^2 + 848637^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 26214741909 + ... + 26214742648.

Almost surely, 2^{19398909286090} is an apocalyptic number.

19398909286090 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

19398909286090 is a deficient number, since it is larger than the sum of its proper divisors (16462858151582).

19398909286090 is a wasteful number, since it uses less digits than its factorization.

19398909286090 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 52429484601.

The product of its (nonzero) digits is 136048896, while the sum is 73.

The spelling of 19398909286090 in words is "nineteen trillion, three hundred ninety-eight billion, nine hundred nine million, two hundred eighty-six thousand, ninety".