1078508811646 has 16 divisors (see below), whose sum is σ = 1872275696640. Its totient is φ = 456367200120.

The previous prime is 1078508811643. The next prime is 1078508811773. The reversal of 1078508811646 is 6461188058701.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1078508811641) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 487570690 + ... + 487572901.

It is an arithmetic number, because the mean of its divisors is an integer number (117017231040).

Almost surely, 2^{1078508811646} is an apocalyptic number.

1078508811646 is a deficient number, since it is larger than the sum of its proper divisors (793766884994).

1078508811646 is an equidigital number, since it uses as much as digits as its factorization.

1078508811646 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 975143679.

The product of its (nonzero) digits is 2580480, while the sum is 55.

The spelling of 1078508811646 in words is "one trillion, seventy-eight billion, five hundred eight million, eight hundred eleven thousand, six hundred forty-six".