74968714721 has 2 divisors, whose sum is σ = 74968714722. Its totient is φ = 74968714720.

The previous prime is 74968714663. The next prime is 74968714727. The reversal of 74968714721 is 12741786947.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 64065178321 + 10903536400 = 253111^2 + 104420^2 .

It is a cyclic number.

It is not a de Polignac number, because 74968714721 - 2¹⁰ = 74968713697 is a prime.

It is not a weakly prime, because it can be changed into another prime (74968714727) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 37484357360 + 37484357361.

It is an arithmetic number, because the mean of its divisors is an integer number (37484357361).

Almost surely, 2^74968714721 is an apocalyptic number.

It is an amenable number.

74968714721 is a deficient number, since it is larger than the sum of its proper divisors (1).

74968714721 is an equidigital number, since it uses as much as digits as its factorization.

74968714721 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 4741632, while the sum is 56.

The spelling of 74968714721 in words is "seventy-four billion, nine hundred sixty-eight million, seven hundred fourteen thousand, seven hundred twenty-one".