1836638292079 has 2 divisors, whose sum is σ = 1836638292080. Its totient is φ = 1836638292078.

The previous prime is 1836638292077. The next prime is 1836638292131. The reversal of 1836638292079 is 9702928366381.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1836638292079 - 2¹ = 1836638292077 is a prime.

It is a super-2 number, since 2×1836638292079² (a number of 25 digits) contains 22 as substring.

Together with 1836638292077, it forms a pair of twin primes.

It is a self number, because there is not a number n which added to its sum of digits gives 1836638292079.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1836638292077) 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 as a sum of consecutive naturals, namely, 918319146039 + 918319146040.

It is an arithmetic number, because the mean of its divisors is an integer number (918319146040).

Almost surely, 2^{1836638292079} is an apocalyptic number.

1836638292079 is a deficient number, since it is larger than the sum of its proper divisors (1).

1836638292079 is an equidigital number, since it uses as much as digits as its factorization.

1836638292079 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 47029248, while the sum is 64.

The spelling of 1836638292079 in words is "one trillion, eight hundred thirty-six billion, six hundred thirty-eight million, two hundred ninety-two thousand, seventy-nine".