64028019195 has 48 divisors (see below), whose sum is σ = 126872478720. Its totient is φ = 29261639232.

The previous prime is 64028019191. The next prime is 64028019197. The reversal of 64028019195 is 59191082046.

It is not a de Polignac number, because 64028019195 - 2² = 64028019191 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a self number, because there is not a number n which added to its sum of digits gives 64028019195.

It is not an unprimeable number, because it can be changed into a prime (64028019191) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1159626 + ... + 1213584.

It is an arithmetic number, because the mean of its divisors is an integer number (2643176640).

Almost surely, 2^64028019195 is an apocalyptic number.

64028019195 is a deficient number, since it is larger than the sum of its proper divisors (62844459525).

64028019195 is a wasteful number, since it uses less digits than its factorization.

64028019195 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 57744 (or 57741 counting only the distinct ones).

The product of its (nonzero) digits is 155520, while the sum is 45.

The spelling of 64028019195 in words is "sixty-four billion, twenty-eight million, nineteen thousand, one hundred ninety-five".