74968113481 has 2 divisors, whose sum is σ = 74968113482. Its totient is φ = 74968113480.

The previous prime is 74968113433. The next prime is 74968113497. The reversal of 74968113481 is 18431186947.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 64067709456 + 10900404025 = 253116^2 + 104405^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-74968113481 is a prime.

It is a super-2 number, since 2×74968113481² (a number of 23 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (74968113881) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 37484056740 + 37484056741.

It is an arithmetic number, because the mean of its divisors is an integer number (37484056741).

Almost surely, 2^74968113481 is an apocalyptic number.

It is an amenable number.

74968113481 is a deficient number, since it is larger than the sum of its proper divisors (1).

74968113481 is an equidigital number, since it uses as much as digits as its factorization.

74968113481 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1161216, while the sum is 52.

The spelling of 74968113481 in words is "seventy-four billion, nine hundred sixty-eight million, one hundred thirteen thousand, four hundred eighty-one".