42435632555551 has 4 divisors (see below), whose sum is σ = 44669086900600. Its totient is φ = 40202178210504.

The previous prime is 42435632555549. The next prime is 42435632555581. The reversal of 42435632555551 is 15555523653424.

42435632555551 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 42435632555551 - 2¹ = 42435632555549 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 42435632555492 and 42435632555501.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42435632555501) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1116727172496 + ... + 1116727172533.

It is an arithmetic number, because the mean of its divisors is an integer number (11167271725150).

Almost surely, 2^{42435632555551} is an apocalyptic number.

42435632555551 is a deficient number, since it is larger than the sum of its proper divisors (2233454345049).

42435632555551 is a wasteful number, since it uses less digits than its factorization.

42435632555551 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2233454345048.

The product of its digits is 54000000, while the sum is 55.

The spelling of 42435632555551 in words is "forty-two trillion, four hundred thirty-five billion, six hundred thirty-two million, five hundred fifty-five thousand, five hundred fifty-one".