42102623533 has 4 divisors (see below), whose sum is σ = 42103929628. Its totient is φ = 42101317440.

The previous prime is 42102623513. The next prime is 42102623561. The reversal of 42102623533 is 33532620124.

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

It can be written as a sum of positive squares in 2 ways, for example, as 33008712489 + 9093911044 = 181683^2 + 95362^2 .

It is a cyclic number.

It is not a de Polignac number, because 42102623533 - 2²⁹ = 41565752621 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 42102623495 and 42102623504.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42102623513) by changing a digit.

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, 603438 + ... + 669583.

It is an arithmetic number, because the mean of its divisors is an integer number (10525982407).

Almost surely, 2^42102623533 is an apocalyptic number.

It is an amenable number.

42102623533 is a deficient number, since it is larger than the sum of its proper divisors (1306095).

42102623533 is a wasteful number, since it uses less digits than its factorization.

42102623533 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1306094.

The product of its (nonzero) digits is 25920, while the sum is 31.

The spelling of 42102623533 in words is "forty-two billion, one hundred two million, six hundred twenty-three thousand, five hundred thirty-three".