6517612401 has 4 divisors (see below), whose sum is σ = 8690149872. Its totient is φ = 4345074932.

The previous prime is 6517612363. The next prime is 6517612421. The reversal of 6517612401 is 1042167156.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 6517612401 - 2¹⁷ = 6517481329 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (6517612421) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1086268731 + ... + 1086268736.

It is an arithmetic number, because the mean of its divisors is an integer number (2172537468).

Almost surely, 2^6517612401 is an apocalyptic number.

It is an amenable number.

6517612401 is a deficient number, since it is larger than the sum of its proper divisors (2172537471).

6517612401 is a wasteful number, since it uses less digits than its factorization.

6517612401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2172537470.

The product of its (nonzero) digits is 10080, while the sum is 33.

The square root of 6517612401 is about 80731.7310665391. The cubic root of 6517612401 is about 1867.9396603945.

Adding to 6517612401 its reverse (1042167156), we get a palindrome (7559779557).

It can be divided in two parts, 65176 and 12401, that added together give a palindrome (77577).

The spelling of 6517612401 in words is "six billion, five hundred seventeen million, six hundred twelve thousand, four hundred one".