64632293863 has 8 divisors (see below), whose sum is σ = 72035993520. Its totient is φ = 57628794240.

The previous prime is 64632293849. The next prime is 64632293867. The reversal of 64632293863 is 36839223646.

64632293863 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 64632293863 - 2²¹ = 64630196711 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 64632293863.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64632293867) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 100049668 + ... + 100050313.

It is an arithmetic number, because the mean of its divisors is an integer number (9004499190).

Almost surely, 2^64632293863 is an apocalyptic number.

64632293863 is a deficient number, since it is larger than the sum of its proper divisors (7403699657).

64632293863 is a wasteful number, since it uses less digits than its factorization.

64632293863 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 200100017.

The product of its digits is 6718464, while the sum is 52.

The spelling of 64632293863 in words is "sixty-four billion, six hundred thirty-two million, two hundred ninety-three thousand, eight hundred sixty-three".