42371251642501 has 8 divisors (see below), whose sum is σ = 42760402205400. Its totient is φ = 41982108779520.

The previous prime is 42371251642483. The next prime is 42371251642567. The reversal of 42371251642501 is 10524615217324.

It can be written as a sum of positive squares in 4 ways, for example, as 16390068856225 + 25981182786276 = 4048465^2 + 5097174^2 .

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

It is not a de Polignac number, because 42371251642501 - 2¹⁷ = 42371251511429 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 (42371251142501) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9437781 + ... + 13183861.

It is an arithmetic number, because the mean of its divisors is an integer number (5345050275675).

Almost surely, 2^{42371251642501} is an apocalyptic number.

It is an amenable number.

42371251642501 is a deficient number, since it is larger than the sum of its proper divisors (389150562899).

42371251642501 is a wasteful number, since it uses less digits than its factorization.

42371251642501 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3849959.

The product of its (nonzero) digits is 403200, while the sum is 43.

Adding to 42371251642501 its reverse (10524615217324), we get a palindrome (52895866859825).

The spelling of 42371251642501 in words is "forty-two trillion, three hundred seventy-one billion, two hundred fifty-one million, six hundred forty-two thousand, five hundred one".