64823654930 has 32 divisors (see below), whose sum is σ = 117067600944. Its totient is φ = 25844023296.

The previous prime is 64823654891. The next prime is 64823654939. The reversal of 64823654930 is 3945632846.

It can be written as a sum of positive squares in 8 ways, for example, as 15480585241 + 49343069689 = 124421^2 + 222133^2 .

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (64823654939) 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, 4725842 + ... + 4739538.

Almost surely, 2^64823654930 is an apocalyptic number.

64823654930 is a deficient number, since it is larger than the sum of its proper divisors (52243946014).

64823654930 is a wasteful number, since it uses less digits than its factorization.

64823654930 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15230.

The product of its (nonzero) digits is 3732480, while the sum is 50.

The spelling of 64823654930 in words is "sixty-four billion, eight hundred twenty-three million, six hundred fifty-four thousand, nine hundred thirty".