434522657538 has 18 divisors (see below), whose sum is σ = 941471817507. Its totient is φ = 144839953620.

The previous prime is 434522657509. The next prime is 434522657549. The reversal of 434522657538 is 835756225434.

434522657538 is a `hidden beast` number, since 4 + 3 + 4 + 52 + 2 + 6 + 57 + 538 = 666.

It can be written as a sum of positive squares in only one way, i.e., 217261328769 + 217261328769 = 466113^2 + 466113^2 .

It is a tau number, because it is divible by the number of its divisors (18).

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=466113.

It is an unprimeable number.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 2718993 + ... + 2874363.

Almost surely, 2^434522657538 is an apocalyptic number.

434522657538 is an abundant number, since it is smaller than the sum of its proper divisors (506949159969).

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

434522657538 is an frugal number, since it uses more digits than its factorization.

434522657538 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 310750 (or 155376 counting only the distinct ones).

The product of its digits is 24192000, while the sum is 54.

The spelling of 434522657538 in words is "four hundred thirty-four billion, five hundred twenty-two million, six hundred fifty-seven thousand, five hundred thirty-eight".