105997932391 has 8 divisors (see below), whose sum is σ = 114163852880. Its totient is φ = 97833759552.

The previous prime is 105997932389. The next prime is 105997932401. The reversal of 105997932391 is 193239799501.

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 105997932391 - 2¹ = 105997932389 is a prime.

It is a super-2 number, since 2×105997932391² (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 (105997972391) 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, 309561 + ... + 554818.

It is an arithmetic number, because the mean of its divisors is an integer number (14270481610).

Almost surely, 2^105997932391 is an apocalyptic number.

105997932391 is a deficient number, since it is larger than the sum of its proper divisors (8165920489).

105997932391 is an equidigital number, since it uses as much as digits as its factorization.

105997932391 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 873825.

The product of its (nonzero) digits is 4133430, while the sum is 58.

The spelling of 105997932391 in words is "one hundred five billion, nine hundred ninety-seven million, nine hundred thirty-two thousand, three hundred ninety-one".