106403979677 has 4 divisors (see below), whose sum is σ = 106454338620. Its totient is φ = 106353620736.

The previous prime is 106403979601. The next prime is 106403979679. The reversal of 106403979677 is 776979304601.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 776979304601 = 21757 ⋅35711693.

It can be written as a sum of positive squares in 2 ways, for example, as 10245690841 + 96158288836 = 101221^2 + 310094^2 .

It is a cyclic number.

It is not a de Polignac number, because 106403979677 - 2¹² = 106403975581 is a prime.

It is a super-2 number, since 2×106403979677² (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 (106403979679) 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, 25176302 + ... + 25180527.

It is an arithmetic number, because the mean of its divisors is an integer number (26613584655).

Almost surely, 2^106403979677 is an apocalyptic number.

It is an amenable number.

106403979677 is a deficient number, since it is larger than the sum of its proper divisors (50358943).

106403979677 is an equidigital number, since it uses as much as digits as its factorization.

106403979677 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50358942.

The product of its (nonzero) digits is 12002256, while the sum is 59.

The spelling of 106403979677 in words is "one hundred six billion, four hundred three million, nine hundred seventy-nine thousand, six hundred seventy-seven".