36440001947 has 2 divisors, whose sum is σ = 36440001948. Its totient is φ = 36440001946.

The previous prime is 36440001943. The next prime is 36440002013. The reversal of 36440001947 is 74910004463.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 36440001947 - 2² = 36440001943 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 36440001947.

It is not a weakly prime, because it can be changed into another prime (36440001943) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 18220000973 + 18220000974.

It is an arithmetic number, because the mean of its divisors is an integer number (18220000974).

Almost surely, 2^36440001947 is an apocalyptic number.

36440001947 is a deficient number, since it is larger than the sum of its proper divisors (1).

36440001947 is an equidigital number, since it uses as much as digits as its factorization.

36440001947 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 72576, while the sum is 38.

The spelling of 36440001947 in words is "thirty-six billion, four hundred forty million, one thousand, nine hundred forty-seven".