1836668489696 has 48 divisors (see below), whose sum is σ = 3662768471040. Its totient is φ = 906448283520.

The previous prime is 1836668489687. The next prime is 1836668489741. The reversal of 1836668489696 is 6969848666381.

It is a super-2 number, since 2×1836668489696² (a number of 25 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1836668489696.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8813261 + ... + 9019251.

It is an arithmetic number, because the mean of its divisors is an integer number (76307676480).

Almost surely, 2^{1836668489696} is an apocalyptic number.

1836668489696 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

1836668489696 is a deficient number, since it is larger than the sum of its proper divisors (1826099981344).

1836668489696 is a wasteful number, since it uses less digits than its factorization.

1836668489696 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 209607 (or 209599 counting only the distinct ones).

The product of its digits is 3869835264, while the sum is 80.

The spelling of 1836668489696 in words is "one trillion, eight hundred thirty-six billion, six hundred sixty-eight million, four hundred eighty-nine thousand, six hundred ninety-six".