74966439971 has 2 divisors, whose sum is σ = 74966439972. Its totient is φ = 74966439970.

The previous prime is 74966439949. The next prime is 74966440057. The reversal of 74966439971 is 17993466947.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 74966439971 - 2¹⁸ = 74966177827 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 74966439898 and 74966439907.

It is not a weakly prime, because it can be changed into another prime (74966439901) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 37483219985 + 37483219986.

It is an arithmetic number, because the mean of its divisors is an integer number (37483219986).

Almost surely, 2^74966439971 is an apocalyptic number.

74966439971 is a deficient number, since it is larger than the sum of its proper divisors (1).

74966439971 is an equidigital number, since it uses as much as digits as its factorization.

74966439971 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 61725888, while the sum is 65.

The spelling of 74966439971 in words is "seventy-four billion, nine hundred sixty-six million, four hundred thirty-nine thousand, nine hundred seventy-one".