64813690803 has 8 divisors (see below), whose sum is σ = 87459438528. Its totient is φ = 42688535144.

The previous prime is 64813690793. The next prime is 64813690817. The reversal of 64813690803 is 30809631846.

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 64813690803 - 2²⁰ = 64812642227 is a prime.

It is not an unprimeable number, because it can be changed into a prime (64813690303) 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, 130147725 + ... + 130148222.

It is an arithmetic number, because the mean of its divisors is an integer number (10932429816).

Almost surely, 2^64813690803 is an apocalyptic number.

64813690803 is a deficient number, since it is larger than the sum of its proper divisors (22645747725).

64813690803 is a wasteful number, since it uses less digits than its factorization.

64813690803 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 260296033.

The product of its (nonzero) digits is 746496, while the sum is 48.

The spelling of 64813690803 in words is "sixty-four billion, eight hundred thirteen million, six hundred ninety thousand, eight hundred three".