75445854457 has 4 divisors (see below), whose sum is σ = 75454504336. Its totient is φ = 75437204580.

The previous prime is 75445854433. The next prime is 75445854467.

It is a happy number.

75445854457 is nontrivially palindromic in base 10.

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 not a de Polignac number, because 75445854457 - 2⁷ = 75445854329 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (75445854467) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4311843 + ... + 4329304.

It is an arithmetic number, because the mean of its divisors is an integer number (18863626084).

Almost surely, 2^75445854457 is an apocalyptic number.

It is an amenable number.

75445854457 is a deficient number, since it is larger than the sum of its proper divisors (8649879).

75445854457 is an equidigital number, since it uses as much as digits as its factorization.

75445854457 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8649878.

The product of its digits is 62720000, while the sum is 58.

The spelling of 75445854457 in words is "seventy-five billion, four hundred forty-five million, eight hundred fifty-four thousand, four hundred fifty-seven".