109398717140 has 24 divisors (see below), whose sum is σ = 230388134760. Its totient is φ = 43635519488.

The previous prime is 109398717133. The next prime is 109398717143. The reversal of 109398717140 is 41717893901.

It can be written as a sum of positive squares in 4 ways, for example, as 370639504 + 109028077636 = 19252^2 + 330194^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (109398717143) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7740725 + ... + 7754844.

It is an arithmetic number, because the mean of its divisors is an integer number (9599505615).

Almost surely, 2^109398717140 is an apocalyptic number.

109398717140 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

109398717140 is an abundant number, since it is smaller than the sum of its proper divisors (120989417620).

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

109398717140 is a wasteful number, since it uses less digits than its factorization.

109398717140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15495931 (or 15495929 counting only the distinct ones).

The product of its (nonzero) digits is 381024, while the sum is 50.

The spelling of 109398717140 in words is "one hundred nine billion, three hundred ninety-eight million, seven hundred seventeen thousand, one hundred forty".