64620440062 has 8 divisors (see below), whose sum is σ = 97670589192. Its totient is φ = 32063577000.

The previous prime is 64620439973. The next prime is 64620440089. The reversal of 64620440062 is 26004402646.

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

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 123321189 + ... + 123321712.

It is an arithmetic number, because the mean of its divisors is an integer number (12208823649).

Almost surely, 2^64620440062 is an apocalyptic number.

64620440062 is a deficient number, since it is larger than the sum of its proper divisors (33050149130).

64620440062 is a wasteful number, since it uses less digits than its factorization.

64620440062 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 246643034.

The product of its (nonzero) digits is 55296, while the sum is 34.

The spelling of 64620440062 in words is "sixty-four billion, six hundred twenty million, four hundred forty thousand, sixty-two".