64231605471 has 16 divisors (see below), whose sum is σ = 94163447808. Its totient is φ = 38621721600.

The previous prime is 64231605467. The next prime is 64231605491. The reversal of 64231605471 is 17450613246.

It is a happy number.

64231605471 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 64231605471 - 2² = 64231605467 is a prime.

It is a super-3 number, since 3×64231605471³ (a number of 33 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64231605421) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7658850 + ... + 7667231.

It is an arithmetic number, because the mean of its divisors is an integer number (5885215488).

Almost surely, 2^64231605471 is an apocalyptic number.

64231605471 is a deficient number, since it is larger than the sum of its proper divisors (29931842337).

64231605471 is a wasteful number, since it uses less digits than its factorization.

64231605471 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15326222.

The product of its (nonzero) digits is 120960, while the sum is 39.

The spelling of 64231605471 in words is "sixty-four billion, two hundred thirty-one million, six hundred five thousand, four hundred seventy-one".