44405121512 has 16 divisors (see below), whose sum is σ = 84262731840. Its totient is φ = 21935059696.

The previous prime is 44405121499. The next prime is 44405121529. The reversal of 44405121512 is 21512150444.

It is a happy number.

It is a super-2 number, since 2×44405121512² (a number of 22 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 33436928 + ... + 33438255.

It is an arithmetic number, because the mean of its divisors is an integer number (5266420740).

Almost surely, 2^44405121512 is an apocalyptic number.

It is an amenable number.

44405121512 is a deficient number, since it is larger than the sum of its proper divisors (39857610328).

44405121512 is a wasteful number, since it uses less digits than its factorization.

44405121512 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 66875272 (or 66875268 counting only the distinct ones).

The product of its (nonzero) digits is 6400, while the sum is 29.

Adding to 44405121512 its reverse (21512150444), we get a palindrome (65917271956).

The spelling of 44405121512 in words is "forty-four billion, four hundred five million, one hundred twenty-one thousand, five hundred twelve".