64867623382173 has 16 divisors (see below), whose sum is σ = 93502880553920. Its totient is φ = 39861754338816.

The previous prime is 64867623382129. The next prime is 64867623382189. The reversal of 64867623382173 is 37128332676846.

It is a happy number.

It is not a de Polignac number, because 64867623382173 - 2³³ = 64859033447581 is a prime.

It is a super-2 number, since 2×64867623382173² (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 (64867623382103) 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, 15378761140 + ... + 15378765357.

It is an arithmetic number, because the mean of its divisors is an integer number (5843930034620).

Almost surely, 2^{64867623382173} is an apocalyptic number.

It is an amenable number.

64867623382173 is a deficient number, since it is larger than the sum of its proper divisors (28635257171747).

64867623382173 is a wasteful number, since it uses less digits than its factorization.

64867623382173 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30757526556.

The product of its digits is 292626432, while the sum is 66.

The spelling of 64867623382173 in words is "sixty-four trillion, eight hundred sixty-seven billion, six hundred twenty-three million, three hundred eighty-two thousand, one hundred seventy-three".