75727444481 has 32 divisors (see below), whose sum is σ = 88262092800. Its totient is φ = 64444101120.

The previous prime is 75727444477. The next prime is 75727444483. The reversal of 75727444481 is 18444472757.

It is a cyclic number.

It is not a de Polignac number, because 75727444481 - 2² = 75727444477 is a prime.

It is a super-2 number, since 2×75727444481² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (75727444483) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 674360 + ... + 778598.

It is an arithmetic number, because the mean of its divisors is an integer number (2758190400).

Almost surely, 2^75727444481 is an apocalyptic number.

It is an amenable number.

75727444481 is a deficient number, since it is larger than the sum of its proper divisors (12534648319).

75727444481 is a wasteful number, since it uses less digits than its factorization.

75727444481 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 104369.

The product of its digits is 7024640, while the sum is 53.

The spelling of 75727444481 in words is "seventy-five billion, seven hundred twenty-seven million, four hundred forty-four thousand, four hundred eighty-one".