64084440406 has 32 divisors (see below), whose sum is σ = 111011072832. Its totient is φ = 27178022400.

The previous prime is 64084440367. The next prime is 64084440419. The reversal of 64084440406 is 60404448046.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 555306 + ... + 660706.

It is an arithmetic number, because the mean of its divisors is an integer number (3469096026).

Almost surely, 2^64084440406 is an apocalyptic number.

64084440406 is a deficient number, since it is larger than the sum of its proper divisors (46926632426).

64084440406 is a wasteful number, since it uses less digits than its factorization.

64084440406 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 105864.

The product of its (nonzero) digits is 294912, while the sum is 40.

The spelling of 64084440406 in words is "sixty-four billion, eighty-four million, four hundred forty thousand, four hundred six".