64434126635 has 16 divisors (see below), whose sum is σ = 78338280384. Its totient is φ = 50872501632.

The previous prime is 64434126629. The next prime is 64434126643. The reversal of 64434126635 is 53662143446.

64434126635 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 64434126635 - 2¹² = 64434122539 is a prime.

It is a Duffinian 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, 62612 + ... + 364401.

It is an arithmetic number, because the mean of its divisors is an integer number (4896142524).

Almost surely, 2^64434126635 is an apocalyptic number.

64434126635 is a deficient number, since it is larger than the sum of its proper divisors (13904153749).

64434126635 is a wasteful number, since it uses less digits than its factorization.

64434126635 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 427414.

The product of its digits is 1244160, while the sum is 44.

The spelling of 64434126635 in words is "sixty-four billion, four hundred thirty-four million, one hundred twenty-six thousand, six hundred thirty-five".