1026781056672 has 96 divisors (see below), whose sum is σ = 3081331435392. Its totient is φ = 293271896064.

The previous prime is 1026781056659. The next prime is 1026781056737. The reversal of 1026781056672 is 2766501876201.

1026781056672 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (96).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1864528 + ... + 2351600.

It is an arithmetic number, because the mean of its divisors is an integer number (32097202452).

Almost surely, 2^{1026781056672} is an apocalyptic number.

1026781056672 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1026781056672 is an abundant number, since it is smaller than the sum of its proper divisors (2054550378720).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1026781056672 is a wasteful number, since it uses less digits than its factorization.

1026781056672 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 490230 (or 490222 counting only the distinct ones).

The product of its (nonzero) digits is 1693440, while the sum is 51.

The spelling of 1026781056672 in words is "one trillion, twenty-six billion, seven hundred eighty-one million, fifty-six thousand, six hundred seventy-two".