36043620257 has 2 divisors, whose sum is σ = 36043620258. Its totient is φ = 36043620256.

The previous prime is 36043620251. The next prime is 36043620307. The reversal of 36043620257 is 75202634063.

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., 35467812241 + 575808016 = 188329^2 + 23996^2 .

It is a cyclic number.

It is not a de Polignac number, because 36043620257 - 2⁸ = 36043620001 is a prime.

It is a super-2 number, since 2×36043620257² (a number of 22 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 36043620257.

It is not a weakly prime, because it can be changed into another prime (36043620251) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 18021810128 + 18021810129.

It is an arithmetic number, because the mean of its divisors is an integer number (18021810129).

Almost surely, 2^36043620257 is an apocalyptic number.

It is an amenable number.

36043620257 is a deficient number, since it is larger than the sum of its proper divisors (1).

36043620257 is an equidigital number, since it uses as much as digits as its factorization.

36043620257 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 181440, while the sum is 38.

The spelling of 36043620257 in words is "thirty-six billion, forty-three million, six hundred twenty thousand, two hundred fifty-seven".