64321707043 has 24 divisors (see below), whose sum is σ = 72564461424. Its totient is φ = 56510380800.

The previous prime is 64321707029. The next prime is 64321707053. The reversal of 64321707043 is 34070712346.

It is not a de Polignac number, because 64321707043 - 2⁹ = 64321706531 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 64321706993 and 64321707011.

It is not an unprimeable number, because it can be changed into a prime (64321707053) by changing a digit.

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 23 ways as a sum of consecutive naturals, for example, 5157271 + ... + 5169727.

It is an arithmetic number, because the mean of its divisors is an integer number (3023519226).

Almost surely, 2^64321707043 is an apocalyptic number.

64321707043 is a deficient number, since it is larger than the sum of its proper divisors (8242754381).

64321707043 is a wasteful number, since it uses less digits than its factorization.

64321707043 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12723 (or 12616 counting only the distinct ones).

The product of its (nonzero) digits is 84672, while the sum is 37.

The spelling of 64321707043 in words is "sixty-four billion, three hundred twenty-one million, seven hundred seven thousand, forty-three".