64348338572 has 24 divisors (see below), whose sum is σ = 128711590560. Its totient is φ = 27574663680.

The previous prime is 64348338557. The next prime is 64348338577. The reversal of 64348338572 is 27583384346.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (64348338577) 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 7 ways as a sum of consecutive naturals, for example, 121322 + ... + 378702.

It is an arithmetic number, because the mean of its divisors is an integer number (5362982940).

Almost surely, 2^64348338572 is an apocalyptic number.

It is an amenable number.

64348338572 is an abundant number, since it is smaller than the sum of its proper divisors (64363251988).

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

64348338572 is a wasteful number, since it uses less digits than its factorization.

64348338572 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 266321 (or 266319 counting only the distinct ones).

The product of its digits is 11612160, while the sum is 53.

The spelling of 64348338572 in words is "sixty-four billion, three hundred forty-eight million, three hundred thirty-eight thousand, five hundred seventy-two".