64421306302 has 32 divisors (see below), whose sum is σ = 104729432544. Its totient is φ = 29601331200.

The previous prime is 64421306263. The next prime is 64421306333. The reversal of 64421306302 is 20360312446.

It is a super-2 number, since 2×64421306302² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6663352 + ... + 6673012.

It is an arithmetic number, because the mean of its divisors is an integer number (3272794767).

Almost surely, 2^64421306302 is an apocalyptic number.

64421306302 is a deficient number, since it is larger than the sum of its proper divisors (40308126242).

64421306302 is a wasteful number, since it uses less digits than its factorization.

64421306302 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14284.

The product of its (nonzero) digits is 20736, while the sum is 31.

Adding to 64421306302 its reverse (20360312446), we get a palindrome (84781618748).

The spelling of 64421306302 in words is "sixty-four billion, four hundred twenty-one million, three hundred six thousand, three hundred two".