109157538231677 has 8 divisors (see below), whose sum is σ = 118150994137176. Its totient is φ = 100249328354112.

The previous prime is 109157538231653. The next prime is 109157538231787. The reversal of 109157538231677 is 776132835751901.

It can be written as a sum of positive squares in 4 ways, for example, as 2486112181081 + 106671426050596 = 1576741^2 + 10328186^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 109157538231677 - 2²⁶ = 109157471122813 is a prime.

It is a super-2 number, since 2×109157538231677² (a number of 29 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (109157538291677) 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, 21311504318 + ... + 21311509439.

It is an arithmetic number, because the mean of its divisors is an integer number (14768874267147).

Almost surely, 2^{109157538231677} is an apocalyptic number.

It is an amenable number.

109157538231677 is a deficient number, since it is larger than the sum of its proper divisors (8993455905499).

109157538231677 is a wasteful number, since it uses less digits than its factorization.

109157538231677 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42623013967.

The product of its (nonzero) digits is 66679200, while the sum is 65.

The spelling of 109157538231677 in words is "one hundred nine trillion, one hundred fifty-seven billion, five hundred thirty-eight million, two hundred thirty-one thousand, six hundred seventy-seven".