64831605353 has 4 divisors (see below), whose sum is σ = 65298019920. Its totient is φ = 64365190788.

The previous prime is 64831605341. The next prime is 64831605427. The reversal of 64831605353 is 35350613846.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 64831605353 - 2⁴ = 64831605337 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (64831607353) 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 3 ways as a sum of consecutive naturals, for example, 233207075 + ... + 233207352.

It is an arithmetic number, because the mean of its divisors is an integer number (16324504980).

Almost surely, 2^64831605353 is an apocalyptic number.

It is an amenable number.

64831605353 is a deficient number, since it is larger than the sum of its proper divisors (466414567).

64831605353 is a wasteful number, since it uses less digits than its factorization.

64831605353 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 466414566.

The product of its (nonzero) digits is 777600, while the sum is 44.

The spelling of 64831605353 in words is "sixty-four billion, eight hundred thirty-one million, six hundred five thousand, three hundred fifty-three".