6520061425463 has 16 divisors (see below), whose sum is σ = 6587452085760. Its totient is φ = 6452793453216.

The previous prime is 6520061425429. The next prime is 6520061425517. The reversal of 6520061425463 is 3645241600256.

It is a happy number.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-6520061425463 is a prime.

It is a super-2 number, since 2×6520061425463² (a number of 26 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6520061425403) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 737809481 + ... + 737818317.

It is an arithmetic number, because the mean of its divisors is an integer number (411715755360).

Almost surely, 2^{6520061425463} is an apocalyptic number.

6520061425463 is a deficient number, since it is larger than the sum of its proper divisors (67390660297).

6520061425463 is a wasteful number, since it uses less digits than its factorization.

6520061425463 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14926.

The product of its (nonzero) digits is 1036800, while the sum is 44.

The spelling of 6520061425463 in words is "six trillion, five hundred twenty billion, sixty-one million, four hundred twenty-five thousand, four hundred sixty-three".