64188673803 has 14 divisors (see below), whose sum is σ = 96238986644. Its totient is φ = 42792448716.

The previous prime is 64188673799. The next prime is 64188673837. The reversal of 64188673803 is 30837688146.

64188673803 is a `hidden beast` number, since 6 + 418 + 86 + 73 + 80 + 3 = 666.

It is not a de Polignac number, because 64188673803 - 2² = 64188673799 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 64188673803.

It is not an unprimeable number, because it can be changed into a prime (64188673303) by changing a digit.

It is a polite number, since it can be written in 13 ways as a sum of consecutive naturals, for example, 44024425 + ... + 44025882.

Almost surely, 2^64188673803 is an apocalyptic number.

64188673803 is a deficient number, since it is larger than the sum of its proper divisors (32050312841).

64188673803 is an frugal number, since it uses more digits than its factorization.

64188673803 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 88050325 (or 88050310 counting only the distinct ones).

The product of its (nonzero) digits is 4644864, while the sum is 54.

The spelling of 64188673803 in words is "sixty-four billion, one hundred eighty-eight million, six hundred seventy-three thousand, eight hundred three".