42047257623 has 8 divisors (see below), whose sum is σ = 64072011648. Its totient is φ = 24027004344.

The previous prime is 42047257607. The next prime is 42047257627. The reversal of 42047257623 is 32675274024.

42047257623 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 42047257623 - 2⁴ = 42047257607 is a prime.

It is a super-2 number, since 2×42047257623² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42047257627) 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, 1001125161 + ... + 1001125202.

It is an arithmetic number, because the mean of its divisors is an integer number (8009001456).

Almost surely, 2^42047257623 is an apocalyptic number.

42047257623 is a deficient number, since it is larger than the sum of its proper divisors (22024754025).

42047257623 is a wasteful number, since it uses less digits than its factorization.

42047257623 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2002250373.

The product of its (nonzero) digits is 564480, while the sum is 42.

The spelling of 42047257623 in words is "forty-two billion, forty-seven million, two hundred fifty-seven thousand, six hundred twenty-three".