64466480936978 has 8 divisors (see below), whose sum is σ = 97014704212272. Its totient is φ = 32128246199556.

The previous prime is 64466480936933. The next prime is 64466480936993. The reversal of 64466480936978 is 87963908466446.

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

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 52497133700 + ... + 52497134927.

It is an arithmetic number, because the mean of its divisors is an integer number (12126838026534).

Almost surely, 2^{64466480936978} is an apocalyptic number.

64466480936978 is a deficient number, since it is larger than the sum of its proper divisors (32548223275294).

64466480936978 is a wasteful number, since it uses less digits than its factorization.

64466480936978 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 104994268936.

The product of its (nonzero) digits is 9029615616, while the sum is 80.

The spelling of 64466480936978 in words is "sixty-four trillion, four hundred sixty-six billion, four hundred eighty million, nine hundred thirty-six thousand, nine hundred seventy-eight".