64263327380 has 48 divisors (see below), whose sum is σ = 156533978496. Its totient is φ = 21704284800.

The previous prime is 64263327379. The next prime is 64263327487. The reversal of 64263327380 is 8372336246.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 3416171 + ... + 3434930.

It is an arithmetic number, because the mean of its divisors is an integer number (3261124552).

Almost surely, 2^64263327380 is an apocalyptic number.

It is an amenable number.

64263327380 is an abundant number, since it is smaller than the sum of its proper divisors (92270651116).

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

64263327380 is a wasteful number, since it uses less digits than its factorization.

64263327380 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6851184 (or 6851182 counting only the distinct ones).

The product of its (nonzero) digits is 870912, while the sum is 44.

The spelling of 64263327380 in words is "sixty-four billion, two hundred sixty-three million, three hundred twenty-seven thousand, three hundred eighty".