75474611647457 has 4 divisors (see below), whose sum is σ = 82335939979056. Its totient is φ = 68613283315860.

The previous prime is 75474611647447. The next prime is 75474611647483.

75474611647457 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 75474611647457 - 2¹⁰ = 75474611646433 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (75474611647427) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3430664165783 + ... + 3430664165804.

It is an arithmetic number, because the mean of its divisors is an integer number (20583984994764).

Almost surely, 2^{75474611647457} is an apocalyptic number.

It is an amenable number.

75474611647457 is a deficient number, since it is larger than the sum of its proper divisors (6861328331599).

75474611647457 is a wasteful number, since it uses less digits than its factorization.

75474611647457 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6861328331598.

The product of its digits is 553190400, while the sum is 68.

The spelling of 75474611647457 in words is "seventy-five trillion, four hundred seventy-four billion, six hundred eleven million, six hundred forty-seven thousand, four hundred fifty-seven".