1091346590742 has 16 divisors (see below), whose sum is σ = 2182705194432. Its totient is φ = 363780194760.

The previous prime is 1091346590729. The next prime is 1091346590749. The reversal of 1091346590742 is 2470956431901.

It is a happy number.

It is a super-2 number, since 2×1091346590742² (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 (1091346590749) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1049913 + ... + 1812459.

It is an arithmetic number, because the mean of its divisors is an integer number (136419074652).

Almost surely, 2^{1091346590742} is an apocalyptic number.

1091346590742 is an abundant number, since it is smaller than the sum of its proper divisors (1091358603690).

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

1091346590742 is a wasteful number, since it uses less digits than its factorization.

1091346590742 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1001083.

The product of its (nonzero) digits is 1632960, while the sum is 51.

The spelling of 1091346590742 in words is "one trillion, ninety-one billion, three hundred forty-six million, five hundred ninety thousand, seven hundred forty-two".