30159428542 has 4 divisors (see below), whose sum is σ = 45239142816. Its totient is φ = 15079714270.

The previous prime is 30159428531. The next prime is 30159428549. The reversal of 30159428542 is 24582495103.

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

It is a super-2 number, since 2×30159428542² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30159428549) 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 as a sum of consecutive naturals, namely, 7539857134 + ... + 7539857137.

It is an arithmetic number, because the mean of its divisors is an integer number (11309785704).

Almost surely, 2^30159428542 is an apocalyptic number.

30159428542 is a deficient number, since it is larger than the sum of its proper divisors (15079714274).

30159428542 is a wasteful number, since it uses less digits than its factorization.

30159428542 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15079714273.

The product of its (nonzero) digits is 345600, while the sum is 43.

The spelling of 30159428542 in words is "thirty billion, one hundred fifty-nine million, four hundred twenty-eight thousand, five hundred forty-two".