7134981851 has 4 divisors (see below), whose sum is σ = 7138793112. Its totient is φ = 7131170592.

The previous prime is 7134981803. The next prime is 7134981857. The reversal of 7134981851 is 1581894317.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1581894317 = 563 ⋅2809759.

It is a cyclic number.

It is not a de Polignac number, because 7134981851 - 2¹⁸ = 7134719707 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 7134981796 and 7134981805.

It is not an unprimeable number, because it can be changed into a prime (7134981857) 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 3 ways as a sum of consecutive naturals, for example, 1902821 + ... + 1906566.

It is an arithmetic number, because the mean of its divisors is an integer number (1784698278).

Almost surely, 2^7134981851 is an apocalyptic number.

7134981851 is a deficient number, since it is larger than the sum of its proper divisors (3811261).

7134981851 is a wasteful number, since it uses less digits than its factorization.

7134981851 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3811260.

The product of its digits is 241920, while the sum is 47.

The square root of 7134981851 is about 84468.8217687449. The cubic root of 7134981851 is about 1925.1487466776.

The spelling of 7134981851 in words is "seven billion, one hundred thirty-four million, nine hundred eighty-one thousand, eight hundred fifty-one".