6523986620245 has 16 divisors (see below), whose sum is σ = 8240988349440. Its totient is φ = 4944397235904.

The previous prime is 6523986620171. The next prime is 6523986620251. The reversal of 6523986620245 is 5420266893256.

It is a cyclic number.

It is not a de Polignac number, because 6523986620245 - 2¹¹ = 6523986618197 is a prime.

It is a super-2 number, since 2×6523986620245² (a number of 26 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 6523986620245.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (31) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4338087 + ... + 5645083.

It is an arithmetic number, because the mean of its divisors is an integer number (515061771840).

Almost surely, 2^{6523986620245} is an apocalyptic number.

It is an amenable number.

6523986620245 is a deficient number, since it is larger than the sum of its proper divisors (1717001729195).

6523986620245 is a wasteful number, since it uses less digits than its factorization.

6523986620245 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1359564.

The product of its (nonzero) digits is 37324800, while the sum is 58.

The spelling of 6523986620245 in words is "six trillion, five hundred twenty-three billion, nine hundred eighty-six million, six hundred twenty thousand, two hundred forty-five".