6435438345345 has 128 divisors (see below), whose sum is σ = 11118968340480. Its totient is φ = 3166732800000.

The previous prime is 6435438345341. The next prime is 6435438345353. The reversal of 6435438345345 is 5435438345346.

It is not a de Polignac number, because 6435438345345 - 2² = 6435438345341 is a prime.

It is not an unprimeable number, because it can be changed into a prime (6435438345341) by changing a digit.

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 127 ways as a sum of consecutive naturals, for example, 4503455091 + ... + 4503456519.

It is an arithmetic number, because the mean of its divisors is an integer number (86866940160).

Almost surely, 2^{6435438345345} is an apocalyptic number.

It is an amenable number.

6435438345345 is a deficient number, since it is larger than the sum of its proper divisors (4683529995135).

6435438345345 is a wasteful number, since it uses less digits than its factorization.

6435438345345 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2767.

The product of its digits is 124416000, while the sum is 57.

Subtracting from 6435438345345 its reverse (5435438345346), we obtain a palindrome (999999999999).

The spelling of 6435438345345 in words is "six trillion, four hundred thirty-five billion, four hundred thirty-eight million, three hundred forty-five thousand, three hundred forty-five".