42988888923 has 4 divisors (see below), whose sum is σ = 57318518568. Its totient is φ = 28659259280.

The previous prime is 42988888913. The next prime is 42988888951. The reversal of 42988888923 is 32988888924.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 42988888923 - 2⁸ = 42988888667 is a prime.

It is not an unprimeable number, because it can be changed into a prime (42988888913) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7164814818 + ... + 7164814823.

It is an arithmetic number, because the mean of its divisors is an integer number (14329629642).

Almost surely, 2^42988888923 is an apocalyptic number.

42988888923 is a deficient number, since it is larger than the sum of its proper divisors (14329629645).

42988888923 is a wasteful number, since it uses less digits than its factorization.

42988888923 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14329629644.

The product of its digits is 127401984, while the sum is 69.

Subtracting from 42988888923 its reverse (32988888924), we obtain a palindrome (9999999999).

The spelling of 42988888923 in words is "forty-two billion, nine hundred eighty-eight million, eight hundred eighty-eight thousand, nine hundred twenty-three".