44121555512144 has 40 divisors (see below), whose sum is σ = 97311573035712. Its totient is φ = 19183285003520.

The previous prime is 44121555512143. The next prime is 44121555512159.

It is a happy number.

44121555512144 is nontrivially palindromic in base 10.

It is a super-2 number, since 2×44121555512144² (a number of 28 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (44).

It is a junction number, because it is equal to n+sod(n) for n = 44121555512095 and 44121555512104.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (44121555512143) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5449792829 + ... + 5449800924.

Almost surely, 2^{44121555512144} is an apocalyptic number.

44121555512144 is a gapful number since it is divisible by the number (44) formed by its first and last digit.

It is an amenable number.

44121555512144 is an abundant number, since it is smaller than the sum of its proper divisors (53190017523568).

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

44121555512144 is a wasteful number, since it uses less digits than its factorization.

44121555512144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10899593795 (or 10899593789 counting only the distinct ones).

The product of its digits is 640000, while the sum is 44.

It can be divided in two parts, 4412155 and 5512144, that added together give a palindrome (9924299).

The spelling of 44121555512144 in words is "forty-four trillion, one hundred twenty-one billion, five hundred fifty-five million, five hundred twelve thousand, one hundred forty-four".