65403426688 has 32 divisors (see below), whose sum is σ = 131023845000. Its totient is φ = 32519010816.

The previous prime is 65403426679. The next prime is 65403426691. The reversal of 65403426688 is 88662430456.

It is a tau number, because it is divible by the number of its divisors (32).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1404363 + ... + 1450186.

Almost surely, 2^65403426688 is an apocalyptic number.

It is an amenable number.

65403426688 is an abundant number, since it is smaller than the sum of its proper divisors (65620418312).

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

65403426688 is a wasteful number, since it uses less digits than its factorization.

65403426688 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2854742 (or 2854730 counting only the distinct ones).

The product of its (nonzero) digits is 6635520, while the sum is 52.

The spelling of 65403426688 in words is "sixty-five billion, four hundred three million, four hundred twenty-six thousand, six hundred eighty-eight".