74106715181 has 2 divisors, whose sum is σ = 74106715182. Its totient is φ = 74106715180.

The previous prime is 74106715147. The next prime is 74106715211. The reversal of 74106715181 is 18151760147.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 44208847081 + 29897868100 = 210259^2 + 172910^2 .

It is a cyclic number.

It is not a de Polignac number, because 74106715181 - 2⁶ = 74106715117 is a prime.

It is a super-2 number, since 2×74106715181² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (74106715381) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 37053357590 + 37053357591.

It is an arithmetic number, because the mean of its divisors is an integer number (37053357591).

Almost surely, 2^74106715181 is an apocalyptic number.

It is an amenable number.

74106715181 is a deficient number, since it is larger than the sum of its proper divisors (1).

74106715181 is an equidigital number, since it uses as much as digits as its factorization.

74106715181 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 47040, while the sum is 41.

The spelling of 74106715181 in words is "seventy-four billion, one hundred six million, seven hundred fifteen thousand, one hundred eighty-one".