1002773477776 has 20 divisors (see below), whose sum is σ = 2220426986752. Its totient is φ = 429760061856.

The previous prime is 1002773477767. The next prime is 1002773477777. The reversal of 1002773477776 is 6777743772001.

It is a self number, because there is not a number n which added to its sum of digits gives 1002773477776.

It is not an unprimeable number, because it can be changed into a prime (1002773477777) 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 3 ways as a sum of consecutive naturals, for example, 4476667200 + ... + 4476667423.

Almost surely, 2^{1002773477776} is an apocalyptic number.

1002773477776 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

1002773477776 is an abundant number, since it is smaller than the sum of its proper divisors (1217653508976).

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

1002773477776 is an equidigital number, since it uses as much as digits as its factorization.

1002773477776 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8953334638 (or 8953334632 counting only the distinct ones).

The product of its (nonzero) digits is 16941456, while the sum is 58.

The spelling of 1002773477776 in words is "one trillion, two billion, seven hundred seventy-three million, four hundred seventy-seven thousand, seven hundred seventy-six".