42596435421 has 12 divisors (see below), whose sum is σ = 61530206140. Its totient is φ = 28396690560.

The previous prime is 42596435419. The next prime is 42596435443. The reversal of 42596435421 is 12453469524.

42596435421 is a `hidden beast` number, since 4 + 2 + 596 + 4 + 3 + 54 + 2 + 1 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 38449719396 + 4146716025 = 196086^2 + 64395^2 .

It is not a de Polignac number, because 42596435421 - 2¹ = 42596435419 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42596435461) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 316695 + ... + 430683.

Almost surely, 2^42596435421 is an apocalyptic number.

It is an amenable number.

42596435421 is a deficient number, since it is larger than the sum of its proper divisors (18933770719).

42596435421 is a wasteful number, since it uses less digits than its factorization.

42596435421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 155516 (or 155513 counting only the distinct ones).

The product of its digits is 1036800, while the sum is 45.

The spelling of 42596435421 in words is "forty-two billion, five hundred ninety-six million, four hundred thirty-five thousand, four hundred twenty-one".