75669008381 has 2 divisors, whose sum is σ = 75669008382. Its totient is φ = 75669008380.

The previous prime is 75669008339. The next prime is 75669008399. The reversal of 75669008381 is 18380096657.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 43583242756 + 32085765625 = 208766^2 + 179125^2 .

It is a cyclic number.

It is not a de Polignac number, because 75669008381 - 2³⁴ = 58489139197 is a prime.

It is a super-2 number, since 2×75669008381² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (75669008081) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 37834504190 + 37834504191.

It is an arithmetic number, because the mean of its divisors is an integer number (37834504191).

Almost surely, 2^75669008381 is an apocalyptic number.

It is an amenable number.

75669008381 is a deficient number, since it is larger than the sum of its proper divisors (1).

75669008381 is an equidigital number, since it uses as much as digits as its factorization.

75669008381 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2177280, while the sum is 53.

The spelling of 75669008381 in words is "seventy-five billion, six hundred sixty-nine million, eight thousand, three hundred eighty-one".