6156100042 has 4 divisors (see below), whose sum is σ = 9234150066. Its totient is φ = 3078050020.

The previous prime is 6156100039. The next prime is 6156100087. The reversal of 6156100042 is 2400016516.

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

It can be written as a sum of positive squares in only one way, i.e., 5750037241 + 406062801 = 75829^2 + 20151^2 .

It is a super-2 number, since 2×6156100042² = 75795135454224803528, which contains 22 as substring.

It is an unprimeable number.

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, 1539025009 + ... + 1539025012.

Almost surely, 2^6156100042 is an apocalyptic number.

6156100042 is a deficient number, since it is larger than the sum of its proper divisors (3078050024).

6156100042 is a wasteful number, since it uses less digits than its factorization.

6156100042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3078050023.

The product of its (nonzero) digits is 1440, while the sum is 25.

The square root of 6156100042 is about 78460.8185147211. The cubic root of 6156100042 is about 1832.7443512392.

Adding to 6156100042 its reverse (2400016516), we get a palindrome (8556116558).

The spelling of 6156100042 in words is "six billion, one hundred fifty-six million, one hundred thousand, forty-two".