64392208700 has 72 divisors (see below), whose sum is σ = 140913012240. Its totient is φ = 25539494400.

The previous prime is 64392208697. The next prime is 64392208709. The reversal of 64392208700 is 780229346.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64392208709) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 13244270 + ... + 13249130.

It is an arithmetic number, because the mean of its divisors is an integer number (1957125170).

Almost surely, 2^64392208700 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 64392208700, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (70456506120).

64392208700 is an abundant number, since it is smaller than the sum of its proper divisors (76520803540).

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

64392208700 is a wasteful number, since it uses less digits than its factorization.

64392208700 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5967 (or 5960 counting only the distinct ones).

The product of its (nonzero) digits is 145152, while the sum is 41.

The spelling of 64392208700 in words is "sixty-four billion, three hundred ninety-two million, two hundred eight thousand, seven hundred".