64453521046 has 16 divisors (see below), whose sum is σ = 101776557024. Its totient is φ = 30552801664.

The previous prime is 64453521037. The next prime is 64453521053. The reversal of 64453521046 is 64012535446.

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 7 ways as a sum of consecutive naturals, for example, 6194641 + ... + 6205036.

It is an arithmetic number, because the mean of its divisors is an integer number (6361034814).

Almost surely, 2^64453521046 is an apocalyptic number.

64453521046 is a deficient number, since it is larger than the sum of its proper divisors (37323035978).

64453521046 is a wasteful number, since it uses less digits than its factorization.

64453521046 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12399815.

The product of its (nonzero) digits is 345600, while the sum is 40.

The spelling of 64453521046 in words is "sixty-four billion, four hundred fifty-three million, five hundred twenty-one thousand, forty-six".