445912397742 has 128 divisors (see below), whose sum is σ = 1071095021568. Its totient is φ = 121002076800.

The previous prime is 445912397701. The next prime is 445912397743. The reversal of 445912397742 is 247793219544.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (445912397743) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 81412708 + ... + 81418184.

It is an arithmetic number, because the mean of its divisors is an integer number (8367929856).

Almost surely, 2^445912397742 is an apocalyptic number.

445912397742 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 445912397742, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (535547510784).

445912397742 is an abundant number, since it is smaller than the sum of its proper divisors (625182623826).

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

445912397742 is a wasteful number, since it uses less digits than its factorization.

445912397742 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6094.

The product of its digits is 15240960, while the sum is 57.

The spelling of 445912397742 in words is "four hundred forty-five billion, nine hundred twelve million, three hundred ninety-seven thousand, seven hundred forty-two".