44145535221402 has 16 divisors (see below), whose sum is σ = 89148265302720. Its totient is φ = 14572312597152.

The previous prime is 44145535221397. The next prime is 44145535221427. The reversal of 44145535221402 is 20412253554144.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 35716451827 + ... + 35716453062.

It is an arithmetic number, because the mean of its divisors is an integer number (5571766581420).

Almost surely, 2^{44145535221402} is an apocalyptic number.

44145535221402 is an abundant number, since it is smaller than the sum of its proper divisors (45002730081318).

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

44145535221402 is a wasteful number, since it uses less digits than its factorization.

44145535221402 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 71432904997.

The product of its (nonzero) digits is 768000, while the sum is 42.

Adding to 44145535221402 its reverse (20412253554144), we get a palindrome (64557788775546).

The spelling of 44145535221402 in words is "forty-four trillion, one hundred forty-five billion, five hundred thirty-five million, two hundred twenty-one thousand, four hundred two".