36445171397 has 2 divisors, whose sum is σ = 36445171398. Its totient is φ = 36445171396.

The previous prime is 36445171393. The next prime is 36445171403. The reversal of 36445171397 is 79317154463.

36445171397 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 33368694241 + 3076477156 = 182671^2 + 55466^2 .

It is a cyclic number.

It is not a de Polignac number, because 36445171397 - 2² = 36445171393 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (36445171391) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 18222585698 + 18222585699.

It is an arithmetic number, because the mean of its divisors is an integer number (18222585699).

Almost surely, 2^36445171397 is an apocalyptic number.

It is an amenable number.

36445171397 is a deficient number, since it is larger than the sum of its proper divisors (1).

36445171397 is an equidigital number, since it uses as much as digits as its factorization.

36445171397 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1905120, while the sum is 50.

The spelling of 36445171397 in words is "thirty-six billion, four hundred forty-five million, one hundred seventy-one thousand, three hundred ninety-seven".