64028055143 has 4 divisors (see below), whose sum is σ = 68953290168. Its totient is φ = 59102820120.

The previous prime is 64028055139. The next prime is 64028055151. The reversal of 64028055143 is 34155082046.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 64028055143 - 2² = 64028055139 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 64028055097 and 64028055106.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64028055193) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2462617493 + ... + 2462617518.

It is an arithmetic number, because the mean of its divisors is an integer number (17238322542).

Almost surely, 2^64028055143 is an apocalyptic number.

64028055143 is a deficient number, since it is larger than the sum of its proper divisors (4925235025).

64028055143 is a wasteful number, since it uses less digits than its factorization.

64028055143 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4925235024.

The product of its (nonzero) digits is 115200, while the sum is 38.

The spelling of 64028055143 in words is "sixty-four billion, twenty-eight million, fifty-five thousand, one hundred forty-three".