64467833876446 has 128 divisors (see below), whose sum is σ = 136711817625600. Its totient is φ = 21958376780160.

The previous prime is 64467833876443. The next prime is 64467833876473.

64467833876446 is nontrivially palindromic in base 10.

It is a super-2 number, since 2×64467833876446² (a number of 28 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64467833876443) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 127517361 + ... + 128021923.

It is an arithmetic number, because the mean of its divisors is an integer number (1068061075200).

Almost surely, 2^{64467833876446} is an apocalyptic number.

64467833876446 is an abundant number, since it is smaller than the sum of its proper divisors (72243983749154).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

64467833876446 is a wasteful number, since it uses less digits than its factorization.

64467833876446 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 507974.

The product of its digits is 9364045824, while the sum is 76.

The spelling of 64467833876446 in words is "sixty-four trillion, four hundred sixty-seven billion, eight hundred thirty-three million, eight hundred seventy-six thousand, four hundred forty-six".