36172261372651 has 2 divisors, whose sum is σ = 36172261372652. Its totient is φ = 36172261372650.

The previous prime is 36172261372619. The next prime is 36172261372727. The reversal of 36172261372651 is 15627316227163.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 36172261372651 - 2⁵ = 36172261372619 is a prime.

It is a super-2 number, since 2×36172261372651² (a number of 28 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (36172261372601) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 18086130686325 + 18086130686326.

It is an arithmetic number, because the mean of its divisors is an integer number (18086130686326).

Almost surely, 2^{36172261372651} is an apocalyptic number.

36172261372651 is a deficient number, since it is larger than the sum of its proper divisors (1).

36172261372651 is an equidigital number, since it uses as much as digits as its factorization.

36172261372651 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3810240, while the sum is 52.

The spelling of 36172261372651 in words is "thirty-six trillion, one hundred seventy-two billion, two hundred sixty-one million, three hundred seventy-two thousand, six hundred fifty-one".