102679771417 has 4 divisors (see below), whose sum is σ = 106220453220. Its totient is φ = 99139089616.

The previous prime is 102679771393. The next prime is 102679771451. The reversal of 102679771417 is 714177976201.

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

It can be written as a sum of positive squares in 2 ways, for example, as 21741797401 + 80937974016 = 147451^2 + 284496^2 .

It is a cyclic number.

It is not a de Polignac number, because 102679771417 - 2⁷ = 102679771289 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (102679771517) 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, 1770340858 + ... + 1770340915.

It is an arithmetic number, because the mean of its divisors is an integer number (26555113305).

Almost surely, 2^102679771417 is an apocalyptic number.

It is an amenable number.

102679771417 is a deficient number, since it is larger than the sum of its proper divisors (3540681803).

102679771417 is an equidigital number, since it uses as much as digits as its factorization.

102679771417 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3540681802.

The product of its (nonzero) digits is 1037232, while the sum is 52.

The spelling of 102679771417 in words is "one hundred two billion, six hundred seventy-nine million, seven hundred seventy-one thousand, four hundred seventeen".