7138047858 has 32 divisors (see below), whose sum is σ = 14756109120. Its totient is φ = 2300669760.

The previous prime is 7138047857. The next prime is 7138047863. The reversal of 7138047858 is 8587408317.

It is a self number, because there is not a number n which added to its sum of digits gives 7138047858.

It is not an unprimeable number, because it can be changed into a prime (7138047857) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 143685 + ... + 186872.

It is an arithmetic number, because the mean of its divisors is an integer number (461128410).

Almost surely, 2^7138047858 is an apocalyptic number.

7138047858 is an abundant number, since it is smaller than the sum of its proper divisors (7618061262).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

7138047858 is a wasteful number, since it uses less digits than its factorization.

7138047858 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 330682.

The product of its (nonzero) digits is 1505280, while the sum is 51.

The square root of 7138047858 is about 84486.9685691231. The cubic root of 7138047858 is about 1925.4244621310.

The spelling of 7138047858 in words is "seven billion, one hundred thirty-eight million, forty-seven thousand, eight hundred fifty-eight".