64231311313246 has 32 divisors (see below), whose sum is σ = 120245114322432. Its totient is φ = 24999306968160.

The previous prime is 64231311313243. The next prime is 64231311313291.

64231311313246 is nontrivially palindromic in base 10.

It is a super-2 number, since 2×64231311313246² (a number of 28 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 64231311313199 and 64231311313208.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64231311313243) 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, 215511081 + ... + 215808916.

It is an arithmetic number, because the mean of its divisors is an integer number (3757659822576).

Almost surely, 2^{64231311313246} is an apocalyptic number.

64231311313246 is a deficient number, since it is larger than the sum of its proper divisors (56013803009186).

64231311313246 is a wasteful number, since it uses less digits than its factorization.

64231311313246 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 431320984.

The product of its digits is 186624, while the sum is 40.

It can be divided in two parts, 6423131 and 1313246, that added together give a palindrome (7736377).

The spelling of 64231311313246 in words is "sixty-four trillion, two hundred thirty-one billion, three hundred eleven million, three hundred thirteen thousand, two hundred forty-six".