42031025643 has 8 divisors (see below), whose sum is σ = 56047235728. Its totient is φ = 28017749664.

The previous prime is 42031025633. The next prime is 42031025653. The reversal of 42031025643 is 34652013024.

It is an interprime number because it is at equal distance from previous prime (42031025633) and next prime (42031025653).

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

It is not a de Polignac number, because 42031025643 - 2¹³ = 42031017451 is a prime.

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 42031025643.

It is not an unprimeable number, because it can be changed into a prime (42031025633) 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, 699880 + ... + 757557.

It is an arithmetic number, because the mean of its divisors is an integer number (7005904466).

Almost surely, 2^42031025643 is an apocalyptic number.

42031025643 is a deficient number, since it is larger than the sum of its proper divisors (14016210085).

42031025643 is a wasteful number, since it uses less digits than its factorization.

42031025643 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1467053.

The product of its (nonzero) digits is 17280, while the sum is 30.

Adding to 42031025643 its reverse (34652013024), we get a palindrome (76683038667).

The spelling of 42031025643 in words is "forty-two billion, thirty-one million, twenty-five thousand, six hundred forty-three".