64425211434402 has 32 divisors (see below), whose sum is σ = 158585135839872. Its totient is φ = 16991264553984.

The previous prime is 64425211434377. The next prime is 64425211434403. The reversal of 64425211434402 is 20443411252446.

64425211434402 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is not an unprimeable number, because it can be changed into a prime (64425211434403) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 58997445823 + ... + 58997446914.

It is an arithmetic number, because the mean of its divisors is an integer number (4955785494996).

Almost surely, 2^{64425211434402} is an apocalyptic number.

64425211434402 is an abundant number, since it is smaller than the sum of its proper divisors (94159924405470).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

64425211434402 is a wasteful number, since it uses less digits than its factorization.

64425211434402 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 117994892762.

The product of its (nonzero) digits is 737280, while the sum is 42.

Adding to 64425211434402 its reverse (20443411252446), we get a palindrome (84868622686848).

The spelling of 64425211434402 in words is "sixty-four trillion, four hundred twenty-five billion, two hundred eleven million, four hundred thirty-four thousand, four hundred two".