107645949979 has 4 divisors (see below), whose sum is σ = 108467674920. Its totient is φ = 106824225040.

The previous prime is 107645949953. The next prime is 107645950021. The reversal of 107645949979 is 979949546701.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-107645949979 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (107645941979) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 410862274 + ... + 410862535.

It is an arithmetic number, because the mean of its divisors is an integer number (27116918730).

Almost surely, 2^107645949979 is an apocalyptic number.

107645949979 is a deficient number, since it is larger than the sum of its proper divisors (821724941).

107645949979 is an equidigital number, since it uses as much as digits as its factorization.

107645949979 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 821724940.

The product of its (nonzero) digits is 154314720, while the sum is 70.

The spelling of 107645949979 in words is "one hundred seven billion, six hundred forty-five million, nine hundred forty-nine thousand, nine hundred seventy-nine".