7854429657158 has 16 divisors (see below), whose sum is σ = 13899082896384. Its totient is φ = 3257597553480.

The previous prime is 7854429657157. The next prime is 7854429657233. The reversal of 7854429657158 is 8517569244587.

It is a Smith number, since the sum of its digits (71) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a junction number, because it is equal to n+sod(n) for n = 7854429657091 and 7854429657100.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7854429657157) 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, 9048881660 + ... + 9048882527.

It is an arithmetic number, because the mean of its divisors is an integer number (868692681024).

Almost surely, 2^{7854429657158} is an apocalyptic number.

7854429657158 is a deficient number, since it is larger than the sum of its proper divisors (6044653239226).

7854429657158 is a wasteful number, since it uses less digits than its factorization.

7854429657158 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18097764227.

The product of its digits is 677376000, while the sum is 71.

The spelling of 7854429657158 in words is "seven trillion, eight hundred fifty-four billion, four hundred twenty-nine million, six hundred fifty-seven thousand, one hundred fifty-eight".