42402261605533 has 4 divisors (see below), whose sum is σ = 42406433834688. Its totient is φ = 42398089376380.

The previous prime is 42402261605513. The next prime is 42402261605549. The reversal of 42402261605533 is 33550616220424.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-42402261605533 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 42402261605533.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42402261605513) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2086099333 + ... + 2086119658.

It is an arithmetic number, because the mean of its divisors is an integer number (10601608458672).

Almost surely, 2^{42402261605533} is an apocalyptic number.

It is an amenable number.

42402261605533 is a deficient number, since it is larger than the sum of its proper divisors (4172229155).

42402261605533 is a wasteful number, since it uses less digits than its factorization.

42402261605533 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4172229154.

The product of its (nonzero) digits is 1036800, while the sum is 43.

Adding to 42402261605533 its reverse (33550616220424), we get a palindrome (75952877825957).

The spelling of 42402261605533 in words is "forty-two trillion, four hundred two billion, two hundred sixty-one million, six hundred five thousand, five hundred thirty-three".