36071558381 has 2 divisors, whose sum is σ = 36071558382. Its totient is φ = 36071558380.

The previous prime is 36071558377. The next prime is 36071558437. The reversal of 36071558381 is 18385517063.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 34868092900 + 1203465481 = 186730^2 + 34691^2 .

It is a cyclic number.

It is not a de Polignac number, because 36071558381 - 2² = 36071558377 is a prime.

It is a super-2 number, since 2×36071558381² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (36071558581) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 18035779190 + 18035779191.

It is an arithmetic number, because the mean of its divisors is an integer number (18035779191).

Almost surely, 2^36071558381 is an apocalyptic number.

It is an amenable number.

36071558381 is a deficient number, since it is larger than the sum of its proper divisors (1).

36071558381 is an equidigital number, since it uses as much as digits as its factorization.

36071558381 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 604800, while the sum is 47.

The spelling of 36071558381 in words is "thirty-six billion, seventy-one million, five hundred fifty-eight thousand, three hundred eighty-one".