57803966491 has 4 divisors (see below), whose sum is σ = 61204199832. Its totient is φ = 54403733152.

The previous prime is 57803966477. The next prime is 57803966497. The reversal of 57803966491 is 19466930875.

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 57803966491 - 2²⁵ = 57770412059 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (57803966497) 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, 1700116645 + ... + 1700116678.

It is an arithmetic number, because the mean of its divisors is an integer number (15301049958).

Almost surely, 2^57803966491 is an apocalyptic number.

57803966491 is a deficient number, since it is larger than the sum of its proper divisors (3400233341).

57803966491 is a wasteful number, since it uses less digits than its factorization.

57803966491 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3400233340.

The product of its (nonzero) digits is 9797760, while the sum is 58.

The spelling of 57803966491 in words is "fifty-seven billion, eight hundred three million, nine hundred sixty-six thousand, four hundred ninety-one".