1405428805504 has 16 divisors (see below), whose sum is σ = 2799877698720. Its totient is φ = 702714402688.

The previous prime is 1405428805471. The next prime is 1405428805513. The reversal of 1405428805504 is 4055088245041.

It is a tau number, because it is divible by the number of its divisors (16).

It is a congruent number.

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 as a sum of consecutive naturals, namely, 5489956144 + ... + 5489956399.

It is an arithmetic number, because the mean of its divisors is an integer number (174992356170).

Almost surely, 2^{1405428805504} is an apocalyptic number.

It is an amenable number.

1405428805504 is a deficient number, since it is larger than the sum of its proper divisors (1394448893216).

1405428805504 is an equidigital number, since it uses as much as digits as its factorization.

1405428805504 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10979912557 (or 10979912545 counting only the distinct ones).

The product of its (nonzero) digits is 1024000, while the sum is 46.

The spelling of 1405428805504 in words is "one trillion, four hundred five billion, four hundred twenty-eight million, eight hundred five thousand, five hundred four".