64683964901 has 8 divisors (see below), whose sum is σ = 64965954240. Its totient is φ = 64402352352.

The previous prime is 64683964883. The next prime is 64683964913. The reversal of 64683964901 is 10946938646.

It is a happy number.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-64683964901 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64683964991) 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, 252665 + ... + 439553.

It is an arithmetic number, because the mean of its divisors is an integer number (8120744280).

Almost surely, 2^64683964901 is an apocalyptic number.

It is an amenable number.

64683964901 is a deficient number, since it is larger than the sum of its proper divisors (281989339).

64683964901 is a wasteful number, since it uses less digits than its factorization.

64683964901 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 188395.

The product of its (nonzero) digits is 6718464, while the sum is 56.

The spelling of 64683964901 in words is "sixty-four billion, six hundred eighty-three million, nine hundred sixty-four thousand, nine hundred one".