42120459461 has 4 divisors (see below), whose sum is σ = 42148560000. Its totient is φ = 42092358924.

The previous prime is 42120459419. The next prime is 42120459481. The reversal of 42120459461 is 16495402124.

42120459461 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 42120459461 - 2²² = 42116265157 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42120459401) 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, 14048021 + ... + 14051018.

It is an arithmetic number, because the mean of its divisors is an integer number (10537140000).

Almost surely, 2^42120459461 is an apocalyptic number.

It is an amenable number.

42120459461 is a deficient number, since it is larger than the sum of its proper divisors (28100539).

42120459461 is a wasteful number, since it uses less digits than its factorization.

42120459461 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28100538.

The product of its (nonzero) digits is 69120, while the sum is 38.

The spelling of 42120459461 in words is "forty-two billion, one hundred twenty million, four hundred fifty-nine thousand, four hundred sixty-one".