42785188158723 has 64 divisors (see below), whose sum is σ = 59607855175680. Its totient is φ = 27276423782400.

The previous prime is 42785188158683. The next prime is 42785188158781. The reversal of 42785188158723 is 32785188158724.

It is not a de Polignac number, because 42785188158723 - 2⁶ = 42785188158659 is a prime.

It is not an unprimeable number, because it can be changed into a prime (42785188158793) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 1161580915 + ... + 1161617747.

It is an arithmetic number, because the mean of its divisors is an integer number (931372737120).

Almost surely, 2^{42785188158723} is an apocalyptic number.

42785188158723 is a deficient number, since it is larger than the sum of its proper divisors (16822667016957).

42785188158723 is a wasteful number, since it uses less digits than its factorization.

42785188158723 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37820.

The product of its digits is 240844800, while the sum is 69.

Subtracting from 42785188158723 its reverse (32785188158724), we obtain a palindrome (9999999999999).

The spelling of 42785188158723 in words is "forty-two trillion, seven hundred eighty-five billion, one hundred eighty-eight million, one hundred fifty-eight thousand, seven hundred twenty-three".