64527637830 has 32 divisors (see below), whose sum is σ = 154873193184. Its totient is φ = 17206607616.

The previous prime is 64527637751. The next prime is 64527637831. The reversal of 64527637830 is 3873672546.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64527637831) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1071604 + ... + 1130216.

It is an arithmetic number, because the mean of its divisors is an integer number (4839787287).

Almost surely, 2^64527637830 is an apocalyptic number.

64527637830 is an abundant number, since it is smaller than the sum of its proper divisors (90345555354).

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

64527637830 is a wasteful number, since it uses less digits than its factorization.

64527637830 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 95320.

The product of its (nonzero) digits is 5080320, while the sum is 51.

The spelling of 64527637830 in words is "sixty-four billion, five hundred twenty-seven million, six hundred thirty-seven thousand, eight hundred thirty".