1091834590452 has 48 divisors (see below), whose sum is σ = 2572576874112. Its totient is φ = 360393955200.

The previous prime is 1091834590433. The next prime is 1091834590459. The reversal of 1091834590452 is 2540954381901.

It is a junction number, because it is equal to n+sod(n) for n = 1091834590395 and 1091834590404.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1091834590459) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 376003 + ... + 1524810.

It is an arithmetic number, because the mean of its divisors is an integer number (53595351544).

Almost surely, 2^{1091834590452} is an apocalyptic number.

1091834590452 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1091834590452 is an abundant number, since it is smaller than the sum of its proper divisors (1480742283660).

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

1091834590452 is a wasteful number, since it uses less digits than its factorization.

1091834590452 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1901288 (or 1901286 counting only the distinct ones).

The product of its (nonzero) digits is 1555200, while the sum is 51.

The spelling of 1091834590452 in words is "one trillion, ninety-one billion, eight hundred thirty-four million, five hundred ninety thousand, four hundred fifty-two".