6520767817413 has 8 divisors (see below), whose sum is σ = 8701718954976. Its totient is φ = 4343497612400.

The previous prime is 6520767817411. The next prime is 6520767817427. The reversal of 6520767817413 is 3147187670256.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 6520767817413 - 2¹ = 6520767817411 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6520767817411) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 920229003 + ... + 920236088.

It is an arithmetic number, because the mean of its divisors is an integer number (1087714869372).

Almost surely, 2^{6520767817413} is an apocalyptic number.

It is an amenable number.

6520767817413 is a deficient number, since it is larger than the sum of its proper divisors (2180951137563).

6520767817413 is a wasteful number, since it uses less digits than its factorization.

6520767817413 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1840466275.

The product of its (nonzero) digits is 11854080, while the sum is 57.

The spelling of 6520767817413 in words is "six trillion, five hundred twenty billion, seven hundred sixty-seven million, eight hundred seventeen thousand, four hundred thirteen".