7423786866672 has 200 divisors, whose sum is σ = 23443005801600. Its totient is φ = 2249336200320.

The previous prime is 7423786866653. The next prime is 7423786866701. The reversal of 7423786866672 is 2766686873247.

It is a super-2 number, since 2×7423786866672² (a number of 27 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (72).

It is a self number, because there is not a number n which added to its sum of digits gives 7423786866672.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 123983013 + ... + 124042875.

It is an arithmetic number, because the mean of its divisors is an integer number (117215029008).

Almost surely, 2^{7423786866672} is an apocalyptic number.

7423786866672 is a gapful number since it is divisible by the number (72) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 7423786866672, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (11721502900800).

7423786866672 is an abundant number, since it is smaller than the sum of its proper divisors (16019218934928).

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

7423786866672 is a wasteful number, since it uses less digits than its factorization.

7423786866672 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 68593 (or 68578 counting only the distinct ones).

The product of its digits is 1365590016, while the sum is 72.

The spelling of 7423786866672 in words is "seven trillion, four hundred twenty-three billion, seven hundred eighty-six million, eight hundred sixty-six thousand, six hundred seventy-two".