75379650881 has 2 divisors, whose sum is σ = 75379650882. Its totient is φ = 75379650880.

The previous prime is 75379650821. The next prime is 75379650883. The reversal of 75379650881 is 18805697357.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 65733268225 + 9646382656 = 256385^2 + 98216^2 .

It is a cyclic number.

It is not a de Polignac number, because 75379650881 - 2²² = 75375456577 is a prime.

It is a super-2 number, since 2×75379650881² (a number of 23 digits) contains 22 as substring.

Together with 75379650883, it forms a pair of twin primes.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 75379650881.

It is not a weakly prime, because it can be changed into another prime (75379650883) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 37689825440 + 37689825441.

It is an arithmetic number, because the mean of its divisors is an integer number (37689825441).

Almost surely, 2^75379650881 is an apocalyptic number.

It is an amenable number.

75379650881 is a deficient number, since it is larger than the sum of its proper divisors (1).

75379650881 is an equidigital number, since it uses as much as digits as its factorization.

75379650881 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 12700800, while the sum is 59.

The spelling of 75379650881 in words is "seventy-five billion, three hundred seventy-nine million, six hundred fifty thousand, eight hundred eighty-one".