64402440202 has 16 divisors (see below), whose sum is σ = 96805174752. Its totient is φ = 32134087440.

The previous prime is 64402440199. The next prime is 64402440227. The reversal of 64402440202 is 20204420446.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4255533 + ... + 4270639.

It is an arithmetic number, because the mean of its divisors is an integer number (6050323422).

Almost surely, 2^64402440202 is an apocalyptic number.

64402440202 is a deficient number, since it is larger than the sum of its proper divisors (32402734550).

64402440202 is a wasteful number, since it uses less digits than its factorization.

64402440202 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19413.

The product of its (nonzero) digits is 12288, while the sum is 28.

Adding to 64402440202 its reverse (20204420446), we get a palindrome (84606860648).

The spelling of 64402440202 in words is "sixty-four billion, four hundred two million, four hundred forty thousand, two hundred two".