42445123502 has 16 divisors (see below), whose sum is σ = 64641196032. Its totient is φ = 20898286200.

The previous prime is 42445123499. The next prime is 42445123529. The reversal of 42445123502 is 20532154424.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 326483 + ... + 437585.

It is an arithmetic number, because the mean of its divisors is an integer number (4040074752).

Almost surely, 2^42445123502 is an apocalyptic number.

42445123502 is a deficient number, since it is larger than the sum of its proper divisors (22196072530).

42445123502 is a wasteful number, since it uses less digits than its factorization.

42445123502 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 114023.

The product of its (nonzero) digits is 38400, while the sum is 32.

Adding to 42445123502 its reverse (20532154424), we get a palindrome (62977277926).

The spelling of 42445123502 in words is "forty-two billion, four hundred forty-five million, one hundred twenty-three thousand, five hundred two".