2445691335779 has 4 divisors (see below), whose sum is σ = 2491836455376. Its totient is φ = 2399546216184.

The previous prime is 2445691335733. The next prime is 2445691335809. The reversal of 2445691335779 is 9775331965442.

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-2445691335779 is a prime.

It is a super-2 number, since 2×2445691335779² (a number of 26 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2445691337779) 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, 23072559719 + ... + 23072559824.

It is an arithmetic number, because the mean of its divisors is an integer number (622959113844).

Almost surely, 2^{2445691335779} is an apocalyptic number.

2445691335779 is a deficient number, since it is larger than the sum of its proper divisors (46145119597).

2445691335779 is an equidigital number, since it uses as much as digits as its factorization.

2445691335779 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46145119596.

The product of its digits is 171460800, while the sum is 65.

The spelling of 2445691335779 in words is "two trillion, four hundred forty-five billion, six hundred ninety-one million, three hundred thirty-five thousand, seven hundred seventy-nine".