1862642813668 has 96 divisors (see below), whose sum is σ = 4047587470080. Its totient is φ = 730323025920.

The previous prime is 1862642813663. The next prime is 1862642813671. The reversal of 1862642813668 is 8663182462681.

It is a super-2 number, since 2×1862642813668² (a number of 25 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1862642813663) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 29972388 + ... + 30034468.

It is an arithmetic number, because the mean of its divisors is an integer number (42162369480).

Almost surely, 2^{1862642813668} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1862642813668, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2023793735040).

1862642813668 is an abundant number, since it is smaller than the sum of its proper divisors (2184944656412).

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

1862642813668 is a wasteful number, since it uses less digits than its factorization.

1862642813668 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 62837 (or 62835 counting only the distinct ones).

The product of its digits is 31850496, while the sum is 61.

The spelling of 1862642813668 in words is "one trillion, eight hundred sixty-two billion, six hundred forty-two million, eight hundred thirteen thousand, six hundred sixty-eight".