36986781847 has 2 divisors, whose sum is σ = 36986781848. Its totient is φ = 36986781846.

The previous prime is 36986781803. The next prime is 36986781857. The reversal of 36986781847 is 74818768963.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 36986781847 - 2⁷ = 36986781719 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (36986781857) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 18493390923 + 18493390924.

It is an arithmetic number, because the mean of its divisors is an integer number (18493390924).

Almost surely, 2^36986781847 is an apocalyptic number.

36986781847 is a deficient number, since it is larger than the sum of its proper divisors (1).

36986781847 is an equidigital number, since it uses as much as digits as its factorization.

36986781847 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 97542144, while the sum is 67.

The spelling of 36986781847 in words is "thirty-six billion, nine hundred eighty-six million, seven hundred eighty-one thousand, eight hundred forty-seven".