75405650457 has 4 divisors (see below), whose sum is σ = 100540867280. Its totient is φ = 50270433636.

The previous prime is 75405650431. The next prime is 75405650471.

75405650457 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 not a de Polignac number, because 75405650457 - 2⁷ = 75405650329 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (75405650057) 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, 12567608407 + ... + 12567608412.

It is an arithmetic number, because the mean of its divisors is an integer number (25135216820).

Almost surely, 2^75405650457 is an apocalyptic number.

It is an amenable number.

75405650457 is a deficient number, since it is larger than the sum of its proper divisors (25135216823).

75405650457 is a wasteful number, since it uses less digits than its factorization.

75405650457 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25135216822.

The product of its (nonzero) digits is 2940000, while the sum is 48.

The spelling of 75405650457 in words is "seventy-five billion, four hundred five million, six hundred fifty thousand, four hundred fifty-seven".