40445135852 has 12 divisors (see below), whose sum is σ = 77213441256. Its totient is φ = 18384152640.

The previous prime is 40445135851. The next prime is 40445135867. The reversal of 40445135852 is 25853154404.

It is not an unprimeable number, because it can be changed into a prime (40445135851) 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, 459603773 + ... + 459603860.

It is an arithmetic number, because the mean of its divisors is an integer number (6434453438).

Almost surely, 2^40445135852 is an apocalyptic number.

It is an amenable number.

40445135852 is a deficient number, since it is larger than the sum of its proper divisors (36768305404).

40445135852 is a wasteful number, since it uses less digits than its factorization.

40445135852 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 919207648 (or 919207646 counting only the distinct ones).

The product of its (nonzero) digits is 384000, while the sum is 41.

The spelling of 40445135852 in words is "forty billion, four hundred forty-five million, one hundred thirty-five thousand, eight hundred fifty-two".