42745856423 has 8 divisors (see below), whose sum is σ = 45058233600. Its totient is φ = 40439738808.

The previous prime is 42745856371. The next prime is 42745856437. The reversal of 42745856423 is 32465854724.

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

It is a cyclic number.

It is not a de Polignac number, because 42745856423 - 2⁶ = 42745856359 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 (42745856443) 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, 1550861 + ... + 1578182.

It is an arithmetic number, because the mean of its divisors is an integer number (5632279200).

Almost surely, 2^42745856423 is an apocalyptic number.

42745856423 is a deficient number, since it is larger than the sum of its proper divisors (2312377177).

42745856423 is a wasteful number, since it uses less digits than its factorization.

42745856423 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3129781.

The product of its digits is 6451200, while the sum is 50.

The spelling of 42745856423 in words is "forty-two billion, seven hundred forty-five million, eight hundred fifty-six thousand, four hundred twenty-three".