74020186900 has 72 divisors (see below), whose sum is σ = 178532260704. Its totient is φ = 26408553600.

The previous prime is 74020186879. The next prime is 74020186949. The reversal of 74020186900 is 968102047.

It is a super-2 number, since 2×74020186900² (a number of 23 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 74020186900.

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 23 ways as a sum of consecutive naturals, for example, 576522 + ... + 693121.

It is an arithmetic number, because the mean of its divisors is an integer number (2479614732).

Almost surely, 2^74020186900 is an apocalyptic number.

It is an amenable number.

74020186900 is an abundant number, since it is smaller than the sum of its proper divisors (104512073804).

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

74020186900 is a wasteful number, since it uses less digits than its factorization.

74020186900 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1269721 (or 1269714 counting only the distinct ones).

The product of its (nonzero) digits is 24192, while the sum is 37.

Adding to 74020186900 its reverse (968102047), we get a palindrome (74988288947).

The spelling of 74020186900 in words is "seventy-four billion, twenty million, one hundred eighty-six thousand, nine hundred".