64813831846 has 16 divisors (see below), whose sum is σ = 97450689024. Its totient is φ = 32330340864.

The previous prime is 64813831843. The next prime is 64813831867.

64813831846 is nontrivially palindromic in base 10.

It is a junction number, because it is equal to n+sod(n) for n = 64813831793 and 64813831802.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64813831843) by changing a digit.

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, 1902216 + ... + 1935988.

It is an arithmetic number, because the mean of its divisors is an integer number (6090668064).

Almost surely, 2^64813831846 is an apocalyptic number.

64813831846 is a deficient number, since it is larger than the sum of its proper divisors (32636857178).

64813831846 is a wasteful number, since it uses less digits than its factorization.

64813831846 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36015.

The product of its digits is 2654208, while the sum is 52.

The spelling of 64813831846 in words is "sixty-four billion, eight hundred thirteen million, eight hundred thirty-one thousand, eight hundred forty-six".