15642062042 has 16 divisors (see below), whose sum is σ = 24488714880. Its totient is φ = 7479309552.

The previous prime is 15642062041. The next prime is 15642062063. The reversal of 15642062042 is 24026024651.

It is not an unprimeable number, because it can be changed into a prime (15642062041) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 183188 + ... + 254640.

It is an arithmetic number, because the mean of its divisors is an integer number (1530544680).

Almost surely, 2^15642062042 is an apocalyptic number.

15642062042 is a deficient number, since it is larger than the sum of its proper divisors (8846652838).

15642062042 is a wasteful number, since it uses less digits than its factorization.

15642062042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 76237.

The product of its (nonzero) digits is 23040, while the sum is 32.

Adding to 15642062042 its reverse (24026024651), we get a palindrome (39668086693).

The spelling of 15642062042 in words is "fifteen billion, six hundred forty-two million, sixty-two thousand, forty-two".