109240898895 has 12 divisors (see below), whose sum is σ = 189350891496. Its totient is φ = 58261812720.

The previous prime is 109240898891. The next prime is 109240898917. The reversal of 109240898895 is 598898042901.

It is not a de Polignac number, because 109240898895 - 2² = 109240898891 is a prime.

It is a super-2 number, since 2×109240898895² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (109240898891) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1213787721 + ... + 1213787810.

It is an arithmetic number, because the mean of its divisors is an integer number (15779240958).

Almost surely, 2^109240898895 is an apocalyptic number.

109240898895 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

109240898895 is a deficient number, since it is larger than the sum of its proper divisors (80109992601).

109240898895 is a wasteful number, since it uses less digits than its factorization.

109240898895 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2427575542 (or 2427575539 counting only the distinct ones).

The product of its (nonzero) digits is 14929920, while the sum is 63.

The spelling of 109240898895 in words is "one hundred nine billion, two hundred forty million, eight hundred ninety-eight thousand, eight hundred ninety-five".