2003453408356 has 9 divisors (see below), whose sum is σ = 3506048418649. Its totient is φ = 1001725288744.

The previous prime is 2003453408287. The next prime is 2003453408423. The reversal of 2003453408356 is 6538043543002.

The square root of 2003453408356 is 1415434.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 1399749272100 + 603704136256 = 1183110^2 + 776984^2 .

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 2477010 + ... + 3184726.

Almost surely, 2^{2003453408356} is an apocalyptic number.

2003453408356 is the 1415434-th square number.

It is an amenable number.

2003453408356 is a deficient number, since it is larger than the sum of its proper divisors (1502595010293).

2003453408356 is an frugal number, since it uses more digits than its factorization.

2003453408356 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1415438 (or 707719 counting only the distinct ones).

The product of its (nonzero) digits is 1036800, while the sum is 43.

It can be divided in two parts, 2003453 and 408356, that added together give a square (2411809 = 1553²).

The spelling of 2003453408356 in words is "two trillion, three billion, four hundred fifty-three million, four hundred eight thousand, three hundred fifty-six".