42401422624431 has 16 divisors (see below), whose sum is σ = 62300003190656. Its totient is φ = 25486364939616.

The previous prime is 42401422624423. The next prime is 42401422624447. The reversal of 42401422624431 is 13442622410424.

It is not a de Polignac number, because 42401422624431 - 2³ = 42401422624423 is a prime.

It is a super-2 number, since 2×42401422624431² (a number of 28 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 42401422624431.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42401422624471) 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, 12642044425 + ... + 12642047778.

It is an arithmetic number, because the mean of its divisors is an integer number (3893750199416).

Almost surely, 2^{42401422624431} is an apocalyptic number.

42401422624431 is a deficient number, since it is larger than the sum of its proper divisors (19898580566225).

42401422624431 is a wasteful number, since it uses less digits than its factorization.

42401422624431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25284092262.

The product of its (nonzero) digits is 294912, while the sum is 39.

The spelling of 42401422624431 in words is "forty-two trillion, four hundred one billion, four hundred twenty-two million, six hundred twenty-four thousand, four hundred thirty-one".