64849063530 has 32 divisors (see below), whose sum is σ = 158275684800. Its totient is φ = 16999980032.

The previous prime is 64849063529. The next prime is 64849063537. The reversal of 64849063530 is 3536094846.

It is a self number, because there is not a number n which added to its sum of digits gives 64849063530.

It is not an unprimeable number, because it can be changed into a prime (64849063537) by changing a digit.

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, 18317175 + ... + 18320714.

It is an arithmetic number, because the mean of its divisors is an integer number (4946115150).

Almost surely, 2^64849063530 is an apocalyptic number.

64849063530 is an abundant number, since it is smaller than the sum of its proper divisors (93426621270).

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

64849063530 is a wasteful number, since it uses less digits than its factorization.

64849063530 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36637958.

The product of its (nonzero) digits is 1866240, while the sum is 48.

The spelling of 64849063530 in words is "sixty-four billion, eight hundred forty-nine million, sixty-three thousand, five hundred thirty".