42144346461 has 8 divisors (see below), whose sum is σ = 64219956544. Its totient is φ = 24082483680.

The previous prime is 42144346441. The next prime is 42144346469. The reversal of 42144346461 is 16464344124.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 42144346461 - 2²⁹ = 41607475549 is a prime.

It is a super-2 number, since 2×42144346461² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42144346469) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1003436800 + ... + 1003436841.

It is an arithmetic number, because the mean of its divisors is an integer number (8027494568).

Almost surely, 2^42144346461 is an apocalyptic number.

It is an amenable number.

42144346461 is a deficient number, since it is larger than the sum of its proper divisors (22075610083).

42144346461 is a wasteful number, since it uses less digits than its factorization.

42144346461 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2006873651.

The product of its digits is 221184, while the sum is 39.

The spelling of 42144346461 in words is "forty-two billion, one hundred forty-four million, three hundred forty-six thousand, four hundred sixty-one".