64424242642402 has 96 divisors (see below), whose sum is σ = 108678825216000. Its totient is φ = 28556942480640.

The previous prime is 64424242642399. The next prime is 64424242642423. The reversal of 64424242642402 is 20424624242446.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 2407559499 + ... + 2407586257.

It is an arithmetic number, because the mean of its divisors is an integer number (1132071096000).

Almost surely, 2^{64424242642402} is an apocalyptic number.

64424242642402 is a deficient number, since it is larger than the sum of its proper divisors (44254582573598).

64424242642402 is a wasteful number, since it uses less digits than its factorization.

64424242642402 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28064 (or 28047 counting only the distinct ones).

The product of its (nonzero) digits is 4718592, while the sum is 46.

Adding to 64424242642402 its reverse (20424624242446), we get a palindrome (84848866884848).

The spelling of 64424242642402 in words is "sixty-four trillion, four hundred twenty-four billion, two hundred forty-two million, six hundred forty-two thousand, four hundred two".