7911168542 has 16 divisors (see below), whose sum is σ = 12207823152. Its totient is φ = 3842251200.

The previous prime is 7911168541. The next prime is 7911168563. The reversal of 7911168542 is 2458611197.

It is a junction number, because it is equal to n+sod(n) for n = 7911168493 and 7911168502.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7911168541) 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, 44468 + ... + 133415.

It is an arithmetic number, because the mean of its divisors is an integer number (762988947).

Almost surely, 2^7911168542 is an apocalyptic number.

7911168542 is a deficient number, since it is larger than the sum of its proper divisors (4296654610).

7911168542 is a wasteful number, since it uses less digits than its factorization.

7911168542 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 178523.

The product of its digits is 120960, while the sum is 44.

The square root of 7911168542 is about 88944.7499406233. The cubic root of 7911168542 is about 1992.5698088131.

The spelling of 7911168542 in words is "seven billion, nine hundred eleven million, one hundred sixty-eight thousand, five hundred forty-two".