64290505584 has 40 divisors (see below), whose sum is σ = 170572562320. Its totient is φ = 20850974208.

The previous prime is 64290505583. The next prime is 64290505589. The reversal of 64290505584 is 48550509246.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64290505583) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 18098029 + ... + 18101580.

It is an arithmetic number, because the mean of its divisors is an integer number (4264314058).

Almost surely, 2^64290505584 is an apocalyptic number.

It is an amenable number.

64290505584 is an abundant number, since it is smaller than the sum of its proper divisors (106282056736).

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

64290505584 is a wasteful number, since it uses less digits than its factorization.

64290505584 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36199657 (or 36199651 counting only the distinct ones).

The product of its (nonzero) digits is 1728000, while the sum is 48.

The spelling of 64290505584 in words is "sixty-four billion, two hundred ninety million, five hundred five thousand, five hundred eighty-four".