4091265636 has 12 divisors (see below), whose sum is σ = 9546286512. Its totient is φ = 1363755208.

The previous prime is 4091265559. The next prime is 4091265637. The reversal of 4091265636 is 6365621904.

It is a tau number, because it is divible by the number of its divisors (12).

It is not an unprimeable number, because it can be changed into a prime (4091265637) 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, 170469390 + ... + 170469413.

It is an arithmetic number, because the mean of its divisors is an integer number (795523876).

Almost surely, 2^4091265636 is an apocalyptic number.

It is an amenable number.

4091265636 is an abundant number, since it is smaller than the sum of its proper divisors (5455020876).

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

4091265636 is a wasteful number, since it uses less digits than its factorization.

4091265636 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 340938810 (or 340938808 counting only the distinct ones).

The product of its (nonzero) digits is 233280, while the sum is 42.

The square root of 4091265636 is about 63963.0020871441. The cubic root of 4091265636 is about 1599.3833086921.

The spelling of 4091265636 in words is "four billion, ninety-one million, two hundred sixty-five thousand, six hundred thirty-six".