15871430142 has 40 divisors (see below), whose sum is σ = 35878525056. Its totient is φ = 5243652288.

The previous prime is 15871430111. The next prime is 15871430143. The reversal of 15871430142 is 24103417851.

15871430142 is a `hidden beast` number, since 1 + 5 + 87 + 1 + 430 + 142 = 666.

It is a super-2 number, since 2×15871430142² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 15871430097 and 15871430106.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (15871430143) 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 19 ways as a sum of consecutive naturals, for example, 415198 + ... + 451809.

Almost surely, 2^15871430142 is an apocalyptic number.

15871430142 is an abundant number, since it is smaller than the sum of its proper divisors (20007094914).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

15871430142 is a wasteful number, since it uses less digits than its factorization.

15871430142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 867134 (or 867125 counting only the distinct ones).

The product of its (nonzero) digits is 26880, while the sum is 36.

Adding to 15871430142 its reverse (24103417851), we get a palindrome (39974847993).

The spelling of 15871430142 in words is "fifteen billion, eight hundred seventy-one million, four hundred thirty thousand, one hundred forty-two".