109289402109 has 6 divisors (see below), whose sum is σ = 157862469726. Its totient is φ = 72859601400.

The previous prime is 109289402083. The next prime is 109289402111. The reversal of 109289402109 is 901204982901.

It can be written as a sum of positive squares in only one way, i.e., 107429895225 + 1859506884 = 327765^2 + 43122^2 .

It is not a de Polignac number, because 109289402109 - 2¹⁶ = 109289336573 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (109289407109) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 6071633442 + ... + 6071633459.

It is an arithmetic number, because the mean of its divisors is an integer number (26310411621).

Almost surely, 2^109289402109 is an apocalyptic number.

It is an amenable number.

109289402109 is a deficient number, since it is larger than the sum of its proper divisors (48573067617).

109289402109 is a wasteful number, since it uses less digits than its factorization.

109289402109 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12143266907 (or 12143266904 counting only the distinct ones).

The product of its (nonzero) digits is 93312, while the sum is 45.

The spelling of 109289402109 in words is "one hundred nine billion, two hundred eighty-nine million, four hundred two thousand, one hundred nine".