1026794780799 has 4 divisors (see below), whose sum is σ = 1369059707736. Its totient is φ = 684529853864.

The previous prime is 1026794780783. The next prime is 1026794780839. The reversal of 1026794780799 is 9970874976201.

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

It is a cyclic number.

It is not a de Polignac number, because 1026794780799 - 2⁴ = 1026794780783 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1026794780399) 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, 171132463464 + ... + 171132463469.

It is an arithmetic number, because the mean of its divisors is an integer number (342264926934).

Almost surely, 2^{1026794780799} is an apocalyptic number.

1026794780799 is a deficient number, since it is larger than the sum of its proper divisors (342264926937).

1026794780799 is an equidigital number, since it uses as much as digits as its factorization.

1026794780799 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 342264926936.

The product of its (nonzero) digits is 96018048, while the sum is 69.

The spelling of 1026794780799 in words is "one trillion, twenty-six billion, seven hundred ninety-four million, seven hundred eighty thousand, seven hundred ninety-nine".