36604775447 has 2 divisors, whose sum is σ = 36604775448. Its totient is φ = 36604775446.

The previous prime is 36604775437. The next prime is 36604775461. The reversal of 36604775447 is 74457740663.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 36604775447 - 2¹² = 36604771351 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (36604775437) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 18302387723 + 18302387724.

It is an arithmetic number, because the mean of its divisors is an integer number (18302387724).

Almost surely, 2^36604775447 is an apocalyptic number.

36604775447 is a deficient number, since it is larger than the sum of its proper divisors (1).

36604775447 is an equidigital number, since it uses as much as digits as its factorization.

36604775447 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 11854080, while the sum is 53.

The spelling of 36604775447 in words is "thirty-six billion, six hundred four million, seven hundred seventy-five thousand, four hundred forty-seven".