1089740864980 has 12 divisors (see below), whose sum is σ = 2288455816500. Its totient is φ = 435896345984.

The previous prime is 1089740864963. The next prime is 1089740864981. The reversal of 1089740864980 is 894680479801.

It can be written as a sum of positive squares in 2 ways, for example, as 740239978384 + 349500886596 = 860372^2 + 591186^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1089740864981) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 27243521605 + ... + 27243521644.

It is an arithmetic number, because the mean of its divisors is an integer number (190704651375).

Almost surely, 2^{1089740864980} is an apocalyptic number.

1089740864980 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1089740864980 is an abundant number, since it is smaller than the sum of its proper divisors (1198714951520).

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

1089740864980 is a wasteful number, since it uses less digits than its factorization.

1089740864980 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 54487043258 (or 54487043256 counting only the distinct ones).

The product of its (nonzero) digits is 27869184, while the sum is 64.

The spelling of 1089740864980 in words is "one trillion, eighty-nine billion, seven hundred forty million, eight hundred sixty-four thousand, nine hundred eighty".