7054681658 has 16 divisors (see below), whose sum is σ = 11250999144. Its totient is φ = 3306071040.

The previous prime is 7054681651. The next prime is 7054681679. The reversal of 7054681658 is 8561864507.

It can be written as a sum of positive squares in 4 ways, for example, as 6730069369 + 324612289 = 82037^2 + 18017^2 .

It is not an unprimeable number, because it can be changed into a prime (7054681651) 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, 422285 + ... + 438672.

Almost surely, 2^7054681658 is an apocalyptic number.

7054681658 is a deficient number, since it is larger than the sum of its proper divisors (4196317486).

7054681658 is a wasteful number, since it uses less digits than its factorization.

7054681658 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 861217.

The product of its (nonzero) digits is 1612800, while the sum is 50.

The square root of 7054681658 is about 83992.1523596104. The cubic root of 7054681658 is about 1917.8993281081.

The spelling of 7054681658 in words is "seven billion, fifty-four million, six hundred eighty-one thousand, six hundred fifty-eight".