4045239491622 has 128 divisors (see below), whose sum is σ = 9461647749120. Its totient is φ = 1129126055040.

The previous prime is 4045239491581. The next prime is 4045239491633. The reversal of 4045239491622 is 2261949325404.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 1110412533 + ... + 1110416175.

It is an arithmetic number, because the mean of its divisors is an integer number (73919123040).

Almost surely, 2^{4045239491622} is an apocalyptic number.

4045239491622 is a gapful number since it is divisible by the number (42) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 4045239491622, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4730823874560).

4045239491622 is an abundant number, since it is smaller than the sum of its proper divisors (5416408257498).

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

4045239491622 is a wasteful number, since it uses less digits than its factorization.

4045239491622 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6538.

The product of its (nonzero) digits is 3732480, while the sum is 51.

The spelling of 4045239491622 in words is "four trillion, forty-five billion, two hundred thirty-nine million, four hundred ninety-one thousand, six hundred twenty-two".