1004897773864 has 16 divisors (see below), whose sum is σ = 1884234940020. Its totient is φ = 502435123200.

The previous prime is 1004897773849. The next prime is 1004897773907. The reversal of 1004897773864 is 4683777984001.

It can be written as a sum of positive squares in 2 ways, for example, as 735700752900 + 269197020964 = 857730^2 + 518842^2 .

It is a junction number, because it is equal to n+sod(n) for n = 1004897773796 and 1004897773805.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1406809 + ... + 1997224.

Almost surely, 2^{1004897773864} is an apocalyptic number.

It is an amenable number.

1004897773864 is a deficient number, since it is larger than the sum of its proper divisors (879337166156).

1004897773864 is a wasteful number, since it uses less digits than its factorization.

1004897773864 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3440940 (or 3440936 counting only the distinct ones).

The product of its (nonzero) digits is 56899584, while the sum is 64.

The spelling of 1004897773864 in words is "one trillion, four billion, eight hundred ninety-seven million, seven hundred seventy-three thousand, eight hundred sixty-four".