64046821621210 has 32 divisors (see below), whose sum is σ = 119871762665472. Its totient is φ = 24611352205440.

The previous prime is 64046821621183. The next prime is 64046821621213. The reversal of 64046821621210 is 1212612864046.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (64046821621213) 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, 753981802 + ... + 754066741.

It is an arithmetic number, because the mean of its divisors is an integer number (3745992583296).

Almost surely, 2^{64046821621210} is an apocalyptic number.

64046821621210 is a deficient number, since it is larger than the sum of its proper divisors (55824941044262).

64046821621210 is a wasteful number, since it uses less digits than its factorization.

64046821621210 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1508048718.

The product of its (nonzero) digits is 221184, while the sum is 43.

The spelling of 64046821621210 in words is "sixty-four trillion, forty-six billion, eight hundred twenty-one million, six hundred twenty-one thousand, two hundred ten".