64031900005 has 16 divisors (see below), whose sum is σ = 77048996544. Its totient is φ = 51085157760.

The previous prime is 64031899993. The next prime is 64031900011. The reversal of 64031900005 is 50000913046.

It is not a de Polignac number, because 64031900005 - 2¹¹ = 64031897957 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5578282 + ... + 5589748.

It is an arithmetic number, because the mean of its divisors is an integer number (4815562284).

Almost surely, 2^64031900005 is an apocalyptic number.

It is an amenable number.

64031900005 is a deficient number, since it is larger than the sum of its proper divisors (13017096539).

64031900005 is a wasteful number, since it uses less digits than its factorization.

64031900005 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14436.

The product of its (nonzero) digits is 3240, while the sum is 28.

The spelling of 64031900005 in words is "sixty-four billion, thirty-one million, nine hundred thousand, five".