64223849743872 has 320 divisors, whose sum is σ = 217373044568064. Its totient is φ = 16391764869120.

The previous prime is 64223849743811. The next prime is 64223849743961. The reversal of 64223849743872 is 27834794832246.

It is a junction number, because it is equal to n+sod(n) for n = 64223849743797 and 64223849743806.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3077863 + ... + 11743974.

Almost surely, 2^{64223849743872} is an apocalyptic number.

64223849743872 is a gapful number since it is divisible by the number (62) formed by its first and last digit.

It is an amenable number.

64223849743872 is an abundant number, since it is smaller than the sum of its proper divisors (153149194824192).

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

64223849743872 is a wasteful number, since it uses less digits than its factorization.

64223849743872 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14821909 (or 14821893 counting only the distinct ones).

The product of its digits is 780337152, while the sum is 69.

The spelling of 64223849743872 in words is "sixty-four trillion, two hundred twenty-three billion, eight hundred forty-nine million, seven hundred forty-three thousand, eight hundred seventy-two".