36654739493 has 2 divisors, whose sum is σ = 36654739494. Its totient is φ = 36654739492.

The previous prime is 36654739483. The next prime is 36654739507. The reversal of 36654739493 is 39493745663.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 30242253409 + 6412486084 = 173903^2 + 80078^2 .

It is a cyclic number.

It is not a de Polignac number, because 36654739493 - 2²² = 36650545189 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (36654739403) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 18327369746 + 18327369747.

It is an arithmetic number, because the mean of its divisors is an integer number (18327369747).

Almost surely, 2^36654739493 is an apocalyptic number.

It is an amenable number.

36654739493 is a deficient number, since it is larger than the sum of its proper divisors (1).

36654739493 is an equidigital number, since it uses as much as digits as its factorization.

36654739493 is an evil number, because the sum of its binary digits is even.

The product of its digits is 44089920, while the sum is 59.

The spelling of 36654739493 in words is "thirty-six billion, six hundred fifty-four million, seven hundred thirty-nine thousand, four hundred ninety-three".