1091380623822 has 40 divisors (see below), whose sum is σ = 2479944730032. Its totient is φ = 358669684800.

The previous prime is 1091380623821. The next prime is 1091380623847. The reversal of 1091380623822 is 2283260831901.

1091380623822 is a `hidden beast` number, since 1 + 0 + 9 + 13 + 8 + 0 + 623 + 8 + 2 + 2 = 666.

It is a super-2 number, since 2×1091380623822² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1091380623821) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 47431579 + ... + 47454582.

Almost surely, 2^{1091380623822} is an apocalyptic number.

1091380623822 is an abundant number, since it is smaller than the sum of its proper divisors (1388564106210).

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

1091380623822 is an equidigital number, since it uses as much as digits as its factorization.

1091380623822 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 94886246 (or 94886237 counting only the distinct ones).

The product of its (nonzero) digits is 248832, while the sum is 45.

The spelling of 1091380623822 in words is "one trillion, ninety-one billion, three hundred eighty million, six hundred twenty-three thousand, eight hundred twenty-two".