925638609169 has 16 divisors (see below), whose sum is σ = 962840507200. Its totient is φ = 889153796160.

The previous prime is 925638609113. The next prime is 925638609197. The reversal of 925638609169 is 961906836529.

It is a cyclic number.

It is not a de Polignac number, because 925638609169 - 2¹¹ = 925638607121 is a prime.

It is a super-2 number, since 2×925638609169² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 925638609169.

It is not an unprimeable number, because it can be changed into a prime (925638609769) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 19777654 + ... + 19824400.

It is an arithmetic number, because the mean of its divisors is an integer number (60177531700).

Almost surely, 2^925638609169 is an apocalyptic number.

It is an amenable number.

925638609169 is a deficient number, since it is larger than the sum of its proper divisors (37201898031).

925638609169 is a wasteful number, since it uses less digits than its factorization.

925638609169 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 54400.

The product of its (nonzero) digits is 37791360, while the sum is 64.

The spelling of 925638609169 in words is "nine hundred twenty-five billion, six hundred thirty-eight million, six hundred nine thousand, one hundred sixty-nine".