3636354981 has 8 divisors (see below), whose sum is σ = 5541112384. Its totient is φ = 2077917120.

The previous prime is 3636354977. The next prime is 3636354991. The reversal of 3636354981 is 1894536363.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 3636354981 - 2² = 3636354977 is a prime.

It is a super-2 number, since 2×3636354981² = 26446155095687020722, which 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 3636354981.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3636354991) 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, 86579860 + ... + 86579901.

It is an arithmetic number, because the mean of its divisors is an integer number (692639048).

Almost surely, 2^3636354981 is an apocalyptic number.

It is an amenable number.

3636354981 is a deficient number, since it is larger than the sum of its proper divisors (1904757403).

3636354981 is a wasteful number, since it uses less digits than its factorization.

3636354981 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 173159771.

The product of its digits is 1399680, while the sum is 48.

The square root of 3636354981 is about 60302.1971490260. The cubic root of 3636354981 is about 1537.7606995832.

The spelling of 3636354981 in words is "three billion, six hundred thirty-six million, three hundred fifty-four thousand, nine hundred eighty-one".