36114717721 has 2 divisors, whose sum is σ = 36114717722. Its totient is φ = 36114717720.

The previous prime is 36114717713. The next prime is 36114717767. The reversal of 36114717721 is 12771741163.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 35885619225 + 229098496 = 189435^2 + 15136^2 .

It is a cyclic number.

It is not a de Polignac number, because 36114717721 - 2³ = 36114717713 is a prime.

It is a super-2 number, since 2×36114717721² (a number of 22 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (36114717781) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 18057358860 + 18057358861.

It is an arithmetic number, because the mean of its divisors is an integer number (18057358861).

Almost surely, 2^36114717721 is an apocalyptic number.

It is an amenable number.

36114717721 is a deficient number, since it is larger than the sum of its proper divisors (1).

36114717721 is an equidigital number, since it uses as much as digits as its factorization.

36114717721 is an evil number, because the sum of its binary digits is even.

The product of its digits is 49392, while the sum is 40.

The spelling of 36114717721 in words is "thirty-six billion, one hundred fourteen million, seven hundred seventeen thousand, seven hundred twenty-one".