106431556189 has 4 divisors (see below), whose sum is σ = 121636064224. Its totient is φ = 91227048156.

The previous prime is 106431556181. The next prime is 106431556249. The reversal of 106431556189 is 981655134601.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 106431556189 - 2³ = 106431556181 is a prime.

It is a super-2 number, since 2×106431556189² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (106431556181) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7602254007 + ... + 7602254020.

It is an arithmetic number, because the mean of its divisors is an integer number (30409016056).

Almost surely, 2^106431556189 is an apocalyptic number.

It is an amenable number.

106431556189 is a deficient number, since it is larger than the sum of its proper divisors (15204508035).

106431556189 is an equidigital number, since it uses as much as digits as its factorization.

106431556189 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15204508034.

The product of its (nonzero) digits is 777600, while the sum is 49.

The spelling of 106431556189 in words is "one hundred six billion, four hundred thirty-one million, five hundred fifty-six thousand, one hundred eighty-nine".