74275471481 has 4 divisors (see below), whose sum is σ = 76671454464. Its totient is φ = 71879488500.

The previous prime is 74275471447. The next prime is 74275471483. The reversal of 74275471481 is 18417457247.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-74275471481 is a prime.

It is a super-2 number, since 2×74275471481² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (74275471483) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1197991445 + ... + 1197991506.

It is an arithmetic number, because the mean of its divisors is an integer number (19167863616).

Almost surely, 2^74275471481 is an apocalyptic number.

It is an amenable number.

74275471481 is a deficient number, since it is larger than the sum of its proper divisors (2395982983).

74275471481 is a wasteful number, since it uses less digits than its factorization.

74275471481 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2395982982.

The product of its digits is 1756160, while the sum is 50.

The spelling of 74275471481 in words is "seventy-four billion, two hundred seventy-five million, four hundred seventy-one thousand, four hundred eighty-one".