64763441603 has 4 divisors (see below), whose sum is σ = 74015361840. Its totient is φ = 55511521368.

The previous prime is 64763441599. The next prime is 64763441647. The reversal of 64763441603 is 30614436746.

64763441603 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 64763441603 - 2² = 64763441599 is a prime.

It is not an unprimeable number, because it can be changed into a prime (64763441003) 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, 4625960108 + ... + 4625960121.

It is an arithmetic number, because the mean of its divisors is an integer number (18503840460).

Almost surely, 2^64763441603 is an apocalyptic number.

64763441603 is a deficient number, since it is larger than the sum of its proper divisors (9251920237).

64763441603 is an equidigital number, since it uses as much as digits as its factorization.

64763441603 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9251920236.

The product of its (nonzero) digits is 870912, while the sum is 44.

The spelling of 64763441603 in words is "sixty-four billion, seven hundred sixty-three million, four hundred forty-one thousand, six hundred three".