19101081092 has 6 divisors (see below), whose sum is σ = 33426891918. Its totient is φ = 9550540544.

The previous prime is 19101081091. The next prime is 19101081143. The reversal of 19101081092 is 29018010191.

It can be written as a sum of positive squares in only one way, i.e., 19072714816 + 28366276 = 138104^2 + 5326^2 .

It is not an unprimeable number, because it can be changed into a prime (19101081091) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2387635133 + ... + 2387635140.

It is an arithmetic number, because the mean of its divisors is an integer number (5571148653).

Almost surely, 2^19101081092 is an apocalyptic number.

It is an amenable number.

19101081092 is a deficient number, since it is larger than the sum of its proper divisors (14325810826).

19101081092 is a wasteful number, since it uses less digits than its factorization.

19101081092 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4775270277 (or 4775270275 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 32.

The spelling of 19101081092 in words is "nineteen billion, one hundred one million, eighty-one thousand, ninety-two".