75424442457 has 32 divisors (see below), whose sum is σ = 124100193280. Its totient is φ = 39679295040.

The previous prime is 75424442413. The next prime is 75424442473.

It is a happy number.

75424442457 is nontrivially palindromic in base 10.

It is not a de Polignac number, because 75424442457 - 2⁶ = 75424442393 is a prime.

It is not an unprimeable number, because it can be changed into a prime (75424442477) 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, 261019 + ... + 467952.

It is an arithmetic number, because the mean of its divisors is an integer number (3878131040).

Almost surely, 2^75424442457 is an apocalyptic number.

It is an amenable number.

75424442457 is a deficient number, since it is larger than the sum of its proper divisors (48675750823).

75424442457 is a wasteful number, since it uses less digits than its factorization.

75424442457 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 729373.

The product of its digits is 5017600, while the sum is 48.

The spelling of 75424442457 in words is "seventy-five billion, four hundred twenty-four million, four hundred forty-two thousand, four hundred fifty-seven".