36217905421 has 16 divisors (see below), whose sum is σ = 36886671360. Its totient is φ = 35554961520.

The previous prime is 36217905419. The next prime is 36217905463. The reversal of 36217905421 is 12450971263.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 36217905421 - 2¹ = 36217905419 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 (36217905721) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 13358256 + ... + 13360966.

It is an arithmetic number, because the mean of its divisors is an integer number (2305416960).

Almost surely, 2^36217905421 is an apocalyptic number.

It is an amenable number.

36217905421 is a deficient number, since it is larger than the sum of its proper divisors (668765939).

36217905421 is a wasteful number, since it uses less digits than its factorization.

36217905421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3696.

The product of its (nonzero) digits is 90720, while the sum is 40.

The spelling of 36217905421 in words is "thirty-six billion, two hundred seventeen million, nine hundred five thousand, four hundred twenty-one".