42161379459 has 16 divisors (see below), whose sum is σ = 58159516320. Its totient is φ = 27135610880.

The previous prime is 42161379457. The next prime is 42161379467. The reversal of 42161379459 is 95497316124.

It is a happy number.

It is not a de Polignac number, because 42161379459 - 2¹ = 42161379457 is a prime.

It is not an unprimeable number, because it can be changed into a prime (42161379457) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1173949 + ... + 1209329.

It is an arithmetic number, because the mean of its divisors is an integer number (3634969770).

Almost surely, 2^42161379459 is an apocalyptic number.

42161379459 is a deficient number, since it is larger than the sum of its proper divisors (15998136861).

42161379459 is a wasteful number, since it uses less digits than its factorization.

42161379459 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49110.

The product of its digits is 1632960, while the sum is 51.

The spelling of 42161379459 in words is "forty-two billion, one hundred sixty-one million, three hundred seventy-nine thousand, four hundred fifty-nine".