36099214821 has 18 divisors (see below), whose sum is σ = 52457780102. Its totient is φ = 23921868240.

The previous prime is 36099214777. The next prime is 36099214883. The reversal of 36099214821 is 12841299063.

36099214821 is a `hidden beast` number, since 3 + 60 + 99 + 21 + 482 + 1 = 666.

It can be written as a sum of positive squares in only one way, i.e., 28845285921 + 7253928900 = 169839^2 + 85170^2 .

It is not a de Polignac number, because 36099214821 - 2¹⁷ = 36099083749 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 (36099214721) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 179091 + ... + 322911.

Almost surely, 2^36099214821 is an apocalyptic number.

It is an amenable number.

36099214821 is a deficient number, since it is larger than the sum of its proper divisors (16358565281).

36099214821 is a wasteful number, since it uses less digits than its factorization.

36099214821 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 144161 (or 143991 counting only the distinct ones).

The product of its (nonzero) digits is 186624, while the sum is 45.

The spelling of 36099214821 in words is "thirty-six billion, ninety-nine million, two hundred fourteen thousand, eight hundred twenty-one".