1084591779373 has 4 divisors (see below), whose sum is σ = 1094542162780. Its totient is φ = 1074641395968.

The previous prime is 1084591779367. The next prime is 1084591779389. The reversal of 1084591779373 is 3739771954801.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 943225555204 + 141366224169 = 971198^2 + 375987^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1084591779373 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1084591779673) 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, 4975191540 + ... + 4975191757.

It is an arithmetic number, because the mean of its divisors is an integer number (273635540695).

Almost surely, 2^{1084591779373} is an apocalyptic number.

It is an amenable number.

1084591779373 is a deficient number, since it is larger than the sum of its proper divisors (9950383407).

1084591779373 is an equidigital number, since it uses as much as digits as its factorization.

1084591779373 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9950383406.

The product of its (nonzero) digits is 40007520, while the sum is 64.

The spelling of 1084591779373 in words is "one trillion, eighty-four billion, five hundred ninety-one million, seven hundred seventy-nine thousand, three hundred seventy-three".