74107571328061 has 2 divisors, whose sum is σ = 74107571328062. Its totient is φ = 74107571328060.

The previous prime is 74107571327971. The next prime is 74107571328079. The reversal of 74107571328061 is 16082317570147.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 70841259725625 + 3266311602436 = 8416725^2 + 1807294^2 .

It is a cyclic number.

It is not a de Polignac number, because 74107571328061 - 2¹⁵ = 74107571295293 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (74107571328361) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 37053785664030 + 37053785664031.

It is an arithmetic number, because the mean of its divisors is an integer number (37053785664031).

Almost surely, 2^{74107571328061} is an apocalyptic number.

It is an amenable number.

74107571328061 is a deficient number, since it is larger than the sum of its proper divisors (1).

74107571328061 is an equidigital number, since it uses as much as digits as its factorization.

74107571328061 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1975680, while the sum is 52.

The spelling of 74107571328061 in words is "seventy-four trillion, one hundred seven billion, five hundred seventy-one million, three hundred twenty-eight thousand, sixty-one".