42879121241 has 4 divisors (see below), whose sum is σ = 46777223184. Its totient is φ = 38981019300.

The previous prime is 42879121183. The next prime is 42879121261. The reversal of 42879121241 is 14212197824.

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 42879121241 - 2¹⁴ = 42879104857 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (42879121261) 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, 1949050955 + ... + 1949050976.

It is an arithmetic number, because the mean of its divisors is an integer number (11694305796).

Almost surely, 2^42879121241 is an apocalyptic number.

It is an amenable number.

42879121241 is a deficient number, since it is larger than the sum of its proper divisors (3898101943).

42879121241 is a wasteful number, since it uses less digits than its factorization.

42879121241 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3898101942.

The product of its digits is 64512, while the sum is 41.

The spelling of 42879121241 in words is "forty-two billion, eight hundred seventy-nine million, one hundred twenty-one thousand, two hundred forty-one".