8109137542 has 32 divisors (see below), whose sum is σ = 14016144384. Its totient is φ = 3484101600.

The previous prime is 8109137539. The next prime is 8109137551. The reversal of 8109137542 is 2457319018.

It is a super-2 number, since 2×8109137542² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 8109137495 and 8109137504.

It is a congruent number.

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 in 15 ways as a sum of consecutive naturals, for example, 108933 + ... + 167584.

It is an arithmetic number, because the mean of its divisors is an integer number (438004512).

Almost surely, 2^8109137542 is an apocalyptic number.

8109137542 is a deficient number, since it is larger than the sum of its proper divisors (5907006842).

8109137542 is a wasteful number, since it uses less digits than its factorization.

8109137542 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 276604.

The product of its (nonzero) digits is 60480, while the sum is 40.

The square root of 8109137542 is about 90050.7498136467. The cubic root of 8109137542 is about 2009.0537481440.

The spelling of 8109137542 in words is "eight billion, one hundred nine million, one hundred thirty-seven thousand, five hundred forty-two".