74573870771 has 2 divisors, whose sum is σ = 74573870772. Its totient is φ = 74573870770.

The previous prime is 74573870711. The next prime is 74573870779. The reversal of 74573870771 is 17707837547.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-74573870771 is a prime.

It is a super-2 number, since 2×74573870771² (a number of 23 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (74573870779) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 37286935385 + 37286935386.

It is an arithmetic number, because the mean of its divisors is an integer number (37286935386).

Almost surely, 2^74573870771 is an apocalyptic number.

74573870771 is a deficient number, since it is larger than the sum of its proper divisors (1).

74573870771 is an equidigital number, since it uses as much as digits as its factorization.

74573870771 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 8067360, while the sum is 56.

The spelling of 74573870771 in words is "seventy-four billion, five hundred seventy-three million, eight hundred seventy thousand, seven hundred seventy-one".