6520886407463 has 4 divisors (see below), whose sum is σ = 6520905357648. Its totient is φ = 6520867457280.

The previous prime is 6520886407439. The next prime is 6520886407471. The reversal of 6520886407463 is 3647046880256.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 6520886407463 - 2²⁶ = 6520819298599 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6520886407493) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8949203 + ... + 9650388.

It is an arithmetic number, because the mean of its divisors is an integer number (1630226339412).

Almost surely, 2^{6520886407463} is an apocalyptic number.

6520886407463 is a deficient number, since it is larger than the sum of its proper divisors (18950185).

6520886407463 is a wasteful number, since it uses less digits than its factorization.

6520886407463 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18950184.

The product of its (nonzero) digits is 46448640, while the sum is 59.

The spelling of 6520886407463 in words is "six trillion, five hundred twenty billion, eight hundred eighty-six million, four hundred seven thousand, four hundred sixty-three".