64687362688400 has 60 divisors (see below), whose sum is σ = 157730961892272. Its totient is φ = 25488751854720.

The previous prime is 64687362688387. The next prime is 64687362688423. The reversal of 64687362688400 is 488626378646.

64687362688400 is digitally balanced in base 5, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1206826982 + ... + 1206880581.

Almost surely, 2^{64687362688400} is an apocalyptic number.

It is an amenable number.

64687362688400 is an abundant number, since it is smaller than the sum of its proper divisors (93043599203872).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

64687362688400 is a wasteful number, since it uses less digits than its factorization.

64687362688400 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2413707648 (or 2413707637 counting only the distinct ones).

The product of its (nonzero) digits is 445906944, while the sum is 68.

The spelling of 64687362688400 in words is "sixty-four trillion, six hundred eighty-seven billion, three hundred sixty-two million, six hundred eighty-eight thousand, four hundred".