1078742923805 has 8 divisors (see below), whose sum is σ = 1294807957344. Its totient is φ = 862783373200.

The previous prime is 1078742923793. The next prime is 1078742923813. The reversal of 1078742923805 is 5083292478701.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a de Polignac number, because none of the positive numbers 2^k-1078742923805 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 26348231 + ... + 26389140.

It is an arithmetic number, because the mean of its divisors is an integer number (161850994668).

Almost surely, 2^{1078742923805} is an apocalyptic number.

It is an amenable number.

1078742923805 is a deficient number, since it is larger than the sum of its proper divisors (216065033539).

1078742923805 is an equidigital number, since it uses as much as digits as its factorization.

1078742923805 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 52741467.

The product of its (nonzero) digits is 6773760, while the sum is 56.

The spelling of 1078742923805 in words is "one trillion, seventy-eight billion, seven hundred forty-two million, nine hundred twenty-three thousand, eight hundred five".