57126587663 has 4 divisors (see below), whose sum is σ = 59610352368. Its totient is φ = 54642822960.

The previous prime is 57126587561. The next prime is 57126587719. The reversal of 57126587663 is 36678562175.

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 57126587663 - 2¹⁸ = 57126325519 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 57126587599 and 57126587608.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (57126587363) 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, 1241882318 + ... + 1241882363.

It is an arithmetic number, because the mean of its divisors is an integer number (14902588092).

Almost surely, 2^57126587663 is an apocalyptic number.

57126587663 is a deficient number, since it is larger than the sum of its proper divisors (2483764705).

57126587663 is a wasteful number, since it uses less digits than its factorization.

57126587663 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2483764704.

The product of its digits is 12700800, while the sum is 56.

The spelling of 57126587663 in words is "fifty-seven billion, one hundred twenty-six million, five hundred eighty-seven thousand, six hundred sixty-three".