109049212788 has 24 divisors (see below), whose sum is σ = 267840172320. Its totient is φ = 34436593440.

The previous prime is 109049212787. The next prime is 109049212819. The reversal of 109049212788 is 887212940901.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 109049212788.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (109049212787) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 239142783 + ... + 239143238.

It is an arithmetic number, because the mean of its divisors is an integer number (11160007180).

Almost surely, 2^109049212788 is an apocalyptic number.

It is an amenable number.

109049212788 is an abundant number, since it is smaller than the sum of its proper divisors (158790959532).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

109049212788 is a wasteful number, since it uses less digits than its factorization.

109049212788 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 478286047 (or 478286045 counting only the distinct ones).

The product of its (nonzero) digits is 580608, while the sum is 51.

The spelling of 109049212788 in words is "one hundred nine billion, forty-nine million, two hundred twelve thousand, seven hundred eighty-eight".