445745642474620 has 12 divisors (see below), whose sum is σ = 936065849196744. Its totient is φ = 178298256989840.

The previous prime is 445745642474611. The next prime is 445745642474621. The reversal of 445745642474620 is 26474246547544.

It is a super-2 number, since 2×445745642474620² (a number of 30 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (445745642474621) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11143641061846 + ... + 11143641061885.

It is an arithmetic number, because the mean of its divisors is an integer number (78005487433062).

Almost surely, 2^{445745642474620} is an apocalyptic number.

It is an amenable number.

445745642474620 is an abundant number, since it is smaller than the sum of its proper divisors (490320206722124).

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

445745642474620 is a wasteful number, since it uses less digits than its factorization.

445745642474620 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22287282123740 (or 22287282123738 counting only the distinct ones).

The product of its (nonzero) digits is 722534400, while the sum is 64.

The spelling of 445745642474620 in words is "four hundred forty-five trillion, seven hundred forty-five billion, six hundred forty-two million, four hundred seventy-four thousand, six hundred twenty".