8169625436 has 24 divisors (see below), whose sum is σ = 16583124096. Its totient is φ = 3449009520.

The previous prime is 8169625433. The next prime is 8169625459. The reversal of 8169625436 is 6345269618.

It is a Smith number, since the sum of its digits (50) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8169625433) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2175530 + ... + 2179281.

It is an arithmetic number, because the mean of its divisors is an integer number (690963504).

Almost surely, 2^8169625436 is an apocalyptic number.

It is an amenable number.

8169625436 is an abundant number, since it is smaller than the sum of its proper divisors (8413498660).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

8169625436 is a wasteful number, since it uses less digits than its factorization.

8169625436 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4354889 (or 4354887 counting only the distinct ones).

The product of its digits is 1866240, while the sum is 50.

The square root of 8169625436 is about 90385.9803066825. The cubic root of 8169625436 is about 2014.0367079450.

The spelling of 8169625436 in words is "eight billion, one hundred sixty-nine million, six hundred twenty-five thousand, four hundred thirty-six".