64420585300 has 36 divisors (see below), whose sum is σ = 143570858620. Its totient is φ = 25071793920.

The previous prime is 64420585237. The next prime is 64420585303. The reversal of 64420585300 is 358502446.

It can be written as a sum of positive squares in 6 ways, for example, as 3804175684 + 60616409616 = 61678^2 + 246204^2 .

It is a Harshad number since it is a multiple of its sum of digits (37).

It is a self number, because there is not a number n which added to its sum of digits gives 64420585300.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64420585303) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 8701785 + ... + 8709184.

Almost surely, 2^64420585300 is an apocalyptic number.

It is an amenable number.

64420585300 is an abundant number, since it is smaller than the sum of its proper divisors (79150273320).

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

64420585300 is a wasteful number, since it uses less digits than its factorization.

64420585300 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17411020 (or 17411013 counting only the distinct ones).

The product of its (nonzero) digits is 115200, while the sum is 37.

The spelling of 64420585300 in words is "sixty-four billion, four hundred twenty million, five hundred eighty-five thousand, three hundred".