6172961605523 has 2 divisors, whose sum is σ = 6172961605524. Its totient is φ = 6172961605522.

The previous prime is 6172961605429. The next prime is 6172961605561. The reversal of 6172961605523 is 3255061692716.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 6172961605523 - 2¹⁴ = 6172961589139 is a prime.

It is a super-2 number, since 2×6172961605523² (a number of 26 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (6172961605423) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3086480802761 + 3086480802762.

It is an arithmetic number, because the mean of its divisors is an integer number (3086480802762).

Almost surely, 2^{6172961605523} is an apocalyptic number.

6172961605523 is a deficient number, since it is larger than the sum of its proper divisors (1).

6172961605523 is an equidigital number, since it uses as much as digits as its factorization.

6172961605523 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4082400, while the sum is 53.

The spelling of 6172961605523 in words is "six trillion, one hundred seventy-two billion, nine hundred sixty-one million, six hundred five thousand, five hundred twenty-three".