109798297511 has 16 divisors (see below), whose sum is σ = 132895619136. Its totient is φ = 88556476416.

The previous prime is 109798297439. The next prime is 109798297559. The reversal of 109798297511 is 115792897901.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-109798297511 is a prime.

It is a super-2 number, since 2×109798297511² (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 (109798297591) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 426875 + ... + 633891.

It is an arithmetic number, because the mean of its divisors is an integer number (8305976196).

Almost surely, 2^109798297511 is an apocalyptic number.

109798297511 is a deficient number, since it is larger than the sum of its proper divisors (23097321625).

109798297511 is a wasteful number, since it uses less digits than its factorization.

109798297511 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 211498.

The product of its (nonzero) digits is 2857680, while the sum is 59.

The spelling of 109798297511 in words is "one hundred nine billion, seven hundred ninety-eight million, two hundred ninety-seven thousand, five hundred eleven".