38070666761 has 2 divisors, whose sum is σ = 38070666762. Its totient is φ = 38070666760.

The previous prime is 38070666721. The next prime is 38070666791. The reversal of 38070666761 is 16766607083.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 28141740025 + 9928926736 = 167755^2 + 99644^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-38070666761 is a prime.

It is a super-2 number, since 2×38070666761² (a number of 22 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (38070666721) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19035333380 + 19035333381.

It is an arithmetic number, because the mean of its divisors is an integer number (19035333381).

Almost surely, 2^38070666761 is an apocalyptic number.

It is an amenable number.

38070666761 is a deficient number, since it is larger than the sum of its proper divisors (1).

38070666761 is an equidigital number, since it uses as much as digits as its factorization.

38070666761 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1524096, while the sum is 50.

The spelling of 38070666761 in words is "thirty-eight billion, seventy million, six hundred sixty-six thousand, seven hundred sixty-one".