7854087542 has 16 divisors (see below), whose sum is σ = 13471391232. Its totient is φ = 3364227240.

The previous prime is 7854087539. The next prime is 7854087581. The reversal of 7854087542 is 2457804587.

It is a super-2 number, since 2×7854087542² (a number of 21 digits) contains 22 as substring.

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 7 ways as a sum of consecutive naturals, for example, 123728 + ... + 176115.

It is an arithmetic number, because the mean of its divisors is an integer number (841961952).

Almost surely, 2^7854087542 is an apocalyptic number.

7854087542 is a deficient number, since it is larger than the sum of its proper divisors (5617303690).

7854087542 is a wasteful number, since it uses less digits than its factorization.

7854087542 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 301723.

The product of its (nonzero) digits is 2508800, while the sum is 50.

The square root of 7854087542 is about 88623.2900653096. The cubic root of 7854087542 is about 1987.7659450410.

The spelling of 7854087542 in words is "seven billion, eight hundred fifty-four million, eighty-seven thousand, five hundred forty-two".