1089712493622 has 112 divisors (see below), whose sum is σ = 2587175069760. Its totient is φ = 343125008496.

The previous prime is 1089712493591. The next prime is 1089712493627. The reversal of 1089712493622 is 2263942179801.

1089712493622 is a `hidden beast` number, since 1 + 0 + 8 + 9 + 7 + 1 + 2 + 4 + 9 + 3 + 622 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1089712493627) by changing a digit.

It is a polite number, since it can be written in 55 ways as a sum of consecutive naturals, for example, 9555913 + ... + 9669275.

Almost surely, 2^{1089712493622} is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1089712493622, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1293587534880).

1089712493622 is an abundant number, since it is smaller than the sum of its proper divisors (1497462576138).

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

1089712493622 is a wasteful number, since it uses less digits than its factorization.

1089712493622 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 113749 (or 113734 counting only the distinct ones).

The product of its (nonzero) digits is 2612736, while the sum is 54.

The spelling of 1089712493622 in words is "one trillion, eighty-nine billion, seven hundred twelve million, four hundred ninety-three thousand, six hundred twenty-two".