1226309329879 has 4 divisors (see below), whose sum is σ = 1226424346576. Its totient is φ = 1226194313184.

The previous prime is 1226309329829. The next prime is 1226309329901. The reversal of 1226309329879 is 9789239036221.

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

It is a cyclic number.

It is not a de Polignac number, because 1226309329879 - 2³³ = 1217719395287 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1226309329829) 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, 57492354 + ... + 57513679.

It is an arithmetic number, because the mean of its divisors is an integer number (306606086644).

Almost surely, 2^{1226309329879} is an apocalyptic number.

1226309329879 is a deficient number, since it is larger than the sum of its proper divisors (115016697).

1226309329879 is a wasteful number, since it uses less digits than its factorization.

1226309329879 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 115016696.

The product of its (nonzero) digits is 17635968, while the sum is 61.

The spelling of 1226309329879 in words is "one trillion, two hundred twenty-six billion, three hundred nine million, three hundred twenty-nine thousand, eight hundred seventy-nine".