3636914381 has 4 divisors (see below), whose sum is σ = 3637116252. Its totient is φ = 3636712512.

The previous prime is 3636914357. The next prime is 3636914387. The reversal of 3636914381 is 1834196363.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 2433448900 + 1203465481 = 49330^2 + 34691^2 .

It is a cyclic number.

It is not a de Polignac number, because 3636914381 - 2¹⁸ = 3636652237 is a prime.

It is a super-2 number, since 2×3636914381² = 26454292429449226322, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3636914387) 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 3 ways as a sum of consecutive naturals, for example, 70940 + ... + 110933.

It is an arithmetic number, because the mean of its divisors is an integer number (909279063).

Almost surely, 2^3636914381 is an apocalyptic number.

It is an amenable number.

3636914381 is a deficient number, since it is larger than the sum of its proper divisors (201871).

3636914381 is a wasteful number, since it uses less digits than its factorization.

3636914381 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 201870.

The product of its digits is 279936, while the sum is 44.

The square root of 3636914381 is about 60306.8352759453. The cubic root of 3636914381 is about 1537.8395495334.

The spelling of 3636914381 in words is "three billion, six hundred thirty-six million, nine hundred fourteen thousand, three hundred eighty-one".