74706630881 has 2 divisors, whose sum is σ = 74706630882. Its totient is φ = 74706630880.

The previous prime is 74706630871. The next prime is 74706630997. The reversal of 74706630881 is 18803660747.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 40086446656 + 34620184225 = 200216^2 + 186065^2 .

It is a cyclic number.

It is not a de Polignac number, because 74706630881 - 2¹⁰ = 74706629857 is a prime.

It is a super-2 number, since 2×74706630881² (a number of 23 digits) contains 22 as substring.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (74706630811) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 37353315440 + 37353315441.

It is an arithmetic number, because the mean of its divisors is an integer number (37353315441).

Almost surely, 2^74706630881 is an apocalyptic number.

It is an amenable number.

74706630881 is a deficient number, since it is larger than the sum of its proper divisors (1).

74706630881 is an equidigital number, since it uses as much as digits as its factorization.

74706630881 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1354752, while the sum is 50.

The spelling of 74706630881 in words is "seventy-four billion, seven hundred six million, six hundred thirty thousand, eight hundred eighty-one".