1194857580797 has 4 divisors (see below), whose sum is σ = 1203579169116. Its totient is φ = 1186135992480.

The previous prime is 1194857580779. The next prime is 1194857580827. The reversal of 1194857580797 is 7970857584911.

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 860601314596 + 334256266201 = 927686^2 + 578149^2 .

It is a cyclic number.

It is not a de Polignac number, because 1194857580797 - 2³² = 1190562613501 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1194857580797.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1194857280797) 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, 4360793954 + ... + 4360794227.

It is an arithmetic number, because the mean of its divisors is an integer number (300894792279).

Almost surely, 2^{1194857580797} is an apocalyptic number.

It is an amenable number.

1194857580797 is a deficient number, since it is larger than the sum of its proper divisors (8721588319).

1194857580797 is an equidigital number, since it uses as much as digits as its factorization.

1194857580797 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8721588318.

The product of its (nonzero) digits is 177811200, while the sum is 71.

The spelling of 1194857580797 in words is "one trillion, one hundred ninety-four billion, eight hundred fifty-seven million, five hundred eighty thousand, seven hundred ninety-seven".