36631447847 has 8 divisors (see below), whose sum is σ = 37896101616. Its totient is φ = 35381247552.

The previous prime is 36631447793. The next prime is 36631447883. The reversal of 36631447847 is 74874413663.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 36631447847 - 2²⁰ = 36630399271 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (36631447247) 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 7 ways as a sum of consecutive naturals, for example, 3608213 + ... + 3618350.

It is an arithmetic number, because the mean of its divisors is an integer number (4737012702).

Almost surely, 2^36631447847 is an apocalyptic number.

36631447847 is a gapful number since it is divisible by the number (37) formed by its first and last digit.

36631447847 is a deficient number, since it is larger than the sum of its proper divisors (1264653769).

36631447847 is a wasteful number, since it uses less digits than its factorization.

36631447847 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7226737.

The product of its digits is 8128512, while the sum is 53.

The spelling of 36631447847 in words is "thirty-six billion, six hundred thirty-one million, four hundred forty-seven thousand, eight hundred forty-seven".