1091927282020 has 12 divisors (see below), whose sum is σ = 2293047292284. Its totient is φ = 436770912800.

The previous prime is 1091927282011. The next prime is 1091927282021. The reversal of 1091927282020 is 202827291901.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 630299439396 + 461627842624 = 793914^2 + 679432^2 .

It is not an unprimeable number, because it can be changed into a prime (1091927282021) 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, 27298182031 + ... + 27298182070.

It is an arithmetic number, because the mean of its divisors is an integer number (191087274357).

Almost surely, 2^{1091927282020} is an apocalyptic number.

1091927282020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1091927282020 is an abundant number, since it is smaller than the sum of its proper divisors (1201120010264).

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

1091927282020 is a wasteful number, since it uses less digits than its factorization.

1091927282020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 54596364110 (or 54596364108 counting only the distinct ones).

The product of its (nonzero) digits is 72576, while the sum is 43.

The spelling of 1091927282020 in words is "one trillion, ninety-one billion, nine hundred twenty-seven million, two hundred eighty-two thousand, twenty".