1851618244696 has 32 divisors (see below), whose sum is σ = 3803116355280. Its totient is φ = 838152345600.

The previous prime is 1851618244667. The next prime is 1851618244727. The reversal of 1851618244696 is 6964428161581.

It is a super-2 number, since 2×1851618244696² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 43632561 + ... + 43674976.

Almost surely, 2^{1851618244696} is an apocalyptic number.

It is an amenable number.

1851618244696 is an abundant number, since it is smaller than the sum of its proper divisors (1951498110584).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1851618244696 is a wasteful number, since it uses less digits than its factorization.

1851618244696 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 87307795 (or 87307791 counting only the distinct ones).

The product of its digits is 19906560, while the sum is 61.

The spelling of 1851618244696 in words is "one trillion, eight hundred fifty-one billion, six hundred eighteen million, two hundred forty-four thousand, six hundred ninety-six".