1081944634408 has 32 divisors (see below), whose sum is σ = 2343249077760. Its totient is φ = 462864014080.

The previous prime is 1081944634373. The next prime is 1081944634447. The reversal of 1081944634408 is 8044364491801.

It is a happy number.

It is a super-3 number, since 3×1081944634408³ (a number of 37 digits) contains 333 as substring.

It is an unprimeable number.

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, 361611016 + ... + 361614007.

It is an arithmetic number, because the mean of its divisors is an integer number (73226533680).

Almost surely, 2^{1081944634408} is an apocalyptic number.

It is an amenable number.

1081944634408 is an abundant number, since it is smaller than the sum of its proper divisors (1261304443352).

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

1081944634408 is a wasteful number, since it uses less digits than its factorization.

1081944634408 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 723225057 (or 723225053 counting only the distinct ones).

The product of its (nonzero) digits is 2654208, while the sum is 52.

The spelling of 1081944634408 in words is "one trillion, eighty-one billion, nine hundred forty-four million, six hundred thirty-four thousand, four hundred eight".