74641187481 has 16 divisors (see below), whose sum is σ = 114035933184. Its totient is φ = 42540739344.

The previous prime is 74641187459. The next prime is 74641187497. The reversal of 74641187481 is 18478114647.

It is a happy number.

It is not a de Polignac number, because 74641187481 - 2⁶ = 74641187417 is a prime.

It is a super-2 number, since 2×74641187481² (a number of 23 digits) contains 22 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (74641187441) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4632091 + ... + 4648176.

It is an arithmetic number, because the mean of its divisors is an integer number (7127245824).

Almost surely, 2^74641187481 is an apocalyptic number.

It is an amenable number.

74641187481 is a deficient number, since it is larger than the sum of its proper divisors (39394745703).

74641187481 is a wasteful number, since it uses less digits than its factorization.

74641187481 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9280660.

The product of its digits is 1204224, while the sum is 51.

The spelling of 74641187481 in words is "seventy-four billion, six hundred forty-one million, one hundred eighty-seven thousand, four hundred eighty-one".