7423820400042 has 96 divisors (see below), whose sum is σ = 16820324801280. Its totient is φ = 2363377927680.

The previous prime is 7423820400011. The next prime is 7423820400043. The reversal of 7423820400042 is 2400040283247.

It is a super-2 number, since 2×7423820400042² (a number of 27 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (7423820400043) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 47289483 + ... + 47446209.

It is an arithmetic number, because the mean of its divisors is an integer number (175211716680).

Almost surely, 2^{7423820400042} is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 7423820400042, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (8410162400640).

7423820400042 is an abundant number, since it is smaller than the sum of its proper divisors (9396504401238).

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

7423820400042 is a wasteful number, since it uses less digits than its factorization.

7423820400042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 157748 (or 157745 counting only the distinct ones).

The product of its (nonzero) digits is 86016, while the sum is 36.

Adding to 7423820400042 its reverse (2400040283247), we get a palindrome (9823860683289).

The spelling of 7423820400042 in words is "seven trillion, four hundred twenty-three billion, eight hundred twenty million, four hundred thousand, forty-two".