74700636617 has 2 divisors, whose sum is σ = 74700636618. Its totient is φ = 74700636616.

The previous prime is 74700636613. The next prime is 74700636631. The reversal of 74700636617 is 71663600747.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 55088314681 + 19612321936 = 234709^2 + 140044^2 .

It is a cyclic number.

It is not a de Polignac number, because 74700636617 - 2² = 74700636613 is a prime.

It is a super-2 number, since 2×74700636617² (a number of 23 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (74700636613) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 37350318308 + 37350318309.

It is an arithmetic number, because the mean of its divisors is an integer number (37350318309).

Almost surely, 2^74700636617 is an apocalyptic number.

It is an amenable number.

74700636617 is a deficient number, since it is larger than the sum of its proper divisors (1).

74700636617 is an equidigital number, since it uses as much as digits as its factorization.

74700636617 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 889056, while the sum is 47.

The spelling of 74700636617 in words is "seventy-four billion, seven hundred million, six hundred thirty-six thousand, six hundred seventeen".