5261903805456 has 75 divisors (see below), whose sum is σ = 15229715228431. Its totient is φ = 1753940408544.

The previous prime is 5261903805443. The next prime is 5261903805601. The reversal of 5261903805456 is 6545083091625.

The square root of 5261903805456 is 2293884.

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

5261903805456 is a `hidden beast` number, since 5 + 2 + 6 + 1 + 90 + 3 + 8 + 0 + 545 + 6 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 14 ways as a sum of consecutive naturals, for example, 82547965 + ... + 82611683.

Almost surely, 2^{5261903805456} is an apocalyptic number.

5261903805456 is the 2293884-th square number.

It is an amenable number.

5261903805456 is an abundant number, since it is smaller than the sum of its proper divisors (9967811422975).

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

5261903805456 is an frugal number, since it uses more digits than its factorization.

5261903805456 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 127458 (or 63724 counting only the distinct ones).

The product of its (nonzero) digits is 7776000, while the sum is 54.

The spelling of 5261903805456 in words is "five trillion, two hundred sixty-one billion, nine hundred three million, eight hundred five thousand, four hundred fifty-six".