42559333861 has 4 divisors (see below), whose sum is σ = 46428364224. Its totient is φ = 38690303500.

The previous prime is 42559333813. The next prime is 42559333867. The reversal of 42559333861 is 16833395524.

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 not a de Polignac number, because 42559333861 - 2²⁹ = 42022462949 is a prime.

It is a super-2 number, since 2×42559333861² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42559333867) 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, 1934515165 + ... + 1934515186.

It is an arithmetic number, because the mean of its divisors is an integer number (11607091056).

Almost surely, 2^42559333861 is an apocalyptic number.

It is an amenable number.

42559333861 is a deficient number, since it is larger than the sum of its proper divisors (3869030363).

42559333861 is a wasteful number, since it uses less digits than its factorization.

42559333861 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3869030362.

The product of its digits is 2332800, while the sum is 49.

The spelling of 42559333861 in words is "forty-two billion, five hundred fifty-nine million, three hundred thirty-three thousand, eight hundred sixty-one".