64312621346 has 16 divisors (see below), whose sum is σ = 98267554944. Its totient is φ = 31562295744.

The previous prime is 64312621301. The next prime is 64312621369.

64312621346 is nontrivially palindromic in base 10.

It is a super-2 number, since 2×64312621346² (a number of 22 digits) contains 22 as substring.

It is a Curzon number.

It is an unprimeable number.

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, 1358126 + ... + 1404681.

It is an arithmetic number, because the mean of its divisors is an integer number (6141722184).

Almost surely, 2^64312621346 is an apocalyptic number.

64312621346 is a deficient number, since it is larger than the sum of its proper divisors (33954933598).

64312621346 is a wasteful number, since it uses less digits than its factorization.

64312621346 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2763025.

The product of its digits is 124416, while the sum is 38.

The spelling of 64312621346 in words is "sixty-four billion, three hundred twelve million, six hundred twenty-one thousand, three hundred forty-six".