64805035231 has 16 divisors (see below), whose sum is σ = 66216890880. Its totient is φ = 63409091200.

The previous prime is 64805035219. The next prime is 64805035241. The reversal of 64805035231 is 13253050846.

It is not a de Polignac number, because 64805035231 - 2⁷ = 64805035103 is a prime.

It is a super-2 number, since 2×64805035231² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64805035241) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 22048560 + ... + 22051498.

It is an arithmetic number, because the mean of its divisors is an integer number (4138555680).

Almost surely, 2^64805035231 is an apocalyptic number.

64805035231 is a deficient number, since it is larger than the sum of its proper divisors (1411855649).

64805035231 is a wasteful number, since it uses less digits than its factorization.

64805035231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5486.

The product of its (nonzero) digits is 86400, while the sum is 37.

The spelling of 64805035231 in words is "sixty-four billion, eight hundred five million, thirty-five thousand, two hundred thirty-one".