12575477807 has 4 divisors (see below), whose sum is σ = 13237345080. Its totient is φ = 11913610536.

The previous prime is 12575477773. The next prime is 12575477819. The reversal of 12575477807 is 70877457521.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 12575477807 - 2⁶ = 12575477743 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12575477867) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 330933608 + ... + 330933645.

It is an arithmetic number, because the mean of its divisors is an integer number (3309336270).

Almost surely, 2^12575477807 is an apocalyptic number.

12575477807 is a deficient number, since it is larger than the sum of its proper divisors (661867273).

12575477807 is an equidigital number, since it uses as much as digits as its factorization.

12575477807 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 661867272.

The product of its (nonzero) digits is 3841600, while the sum is 53.

The spelling of 12575477807 in words is "twelve billion, five hundred seventy-five million, four hundred seventy-seven thousand, eight hundred seven".