502145121442 has 16 divisors (see below), whose sum is σ = 760455829152. Its totient is φ = 248671307520.

The previous prime is 502145121433. The next prime is 502145121479. The reversal of 502145121442 is 244121541205.

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, 2777784 + ... + 2953027.

It is an arithmetic number, because the mean of its divisors is an integer number (47528489322).

Almost surely, 2^502145121442 is an apocalyptic number.

502145121442 is a deficient number, since it is larger than the sum of its proper divisors (258310707710).

502145121442 is a wasteful number, since it uses less digits than its factorization.

502145121442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5731233.

The product of its (nonzero) digits is 12800, while the sum is 31.

Adding to 502145121442 its reverse (244121541205), we get a palindrome (746266662647).

The spelling of 502145121442 in words is "five hundred two billion, one hundred forty-five million, one hundred twenty-one thousand, four hundred forty-two".