75078325061 has 2 divisors, whose sum is σ = 75078325062. Its totient is φ = 75078325060.

The previous prime is 75078325051. The next prime is 75078325097. The reversal of 75078325061 is 16052387057.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 74952750625 + 125574436 = 273775^2 + 11206^2 .

It is a cyclic number.

It is not a de Polignac number, because 75078325061 - 2¹⁴ = 75078308677 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (75078325001) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 37539162530 + 37539162531.

It is an arithmetic number, because the mean of its divisors is an integer number (37539162531).

Almost surely, 2^75078325061 is an apocalyptic number.

It is an amenable number.

75078325061 is a deficient number, since it is larger than the sum of its proper divisors (1).

75078325061 is an equidigital number, since it uses as much as digits as its factorization.

75078325061 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 352800, while the sum is 44.

The spelling of 75078325061 in words is "seventy-five billion, seventy-eight million, three hundred twenty-five thousand, sixty-one".