1227444137832 has 32 divisors (see below), whose sum is σ = 3347574922080. Its totient is φ = 371952768960.

The previous prime is 1227444137809. The next prime is 1227444137833. The reversal of 1227444137832 is 2387314447221.

It is a super-2 number, since 2×1227444137832² (a number of 25 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1227444137833) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2324704543 + ... + 2324705070.

It is an arithmetic number, because the mean of its divisors is an integer number (104611716315).

Almost surely, 2^{1227444137832} is an apocalyptic number.

1227444137832 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1227444137832 is an abundant number, since it is smaller than the sum of its proper divisors (2120130784248).

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

1227444137832 is a wasteful number, since it uses less digits than its factorization.

1227444137832 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4649409633 (or 4649409629 counting only the distinct ones).

The product of its digits is 1806336, while the sum is 48.

The spelling of 1227444137832 in words is "one trillion, two hundred twenty-seven billion, four hundred forty-four million, one hundred thirty-seven thousand, eight hundred thirty-two".