164627326769 has 4 divisors (see below), whose sum is σ = 168455869296. Its totient is φ = 160798784244.

The previous prime is 164627326741. The next prime is 164627326771. The reversal of 164627326769 is 967623726461.

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 164627326769 - 2²⁴ = 164610549553 is a prime.

It is a super-2 number, since 2×164627326769² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (164627326709) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1914271199 + ... + 1914271284.

It is an arithmetic number, because the mean of its divisors is an integer number (42113967324).

Almost surely, 2^164627326769 is an apocalyptic number.

It is an amenable number.

164627326769 is a deficient number, since it is larger than the sum of its proper divisors (3828542527).

164627326769 is an equidigital number, since it uses as much as digits as its factorization.

164627326769 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3828542526.

The product of its digits is 27433728, while the sum is 59.

The spelling of 164627326769 in words is "one hundred sixty-four billion, six hundred twenty-seven million, three hundred twenty-six thousand, seven hundred sixty-nine".