7270986818 has 4 divisors (see below), whose sum is σ = 10906480230. Its totient is φ = 3635493408.

The previous prime is 7270986787. The next prime is 7270986829. The reversal of 7270986818 is 8186890727.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 8186890727 = 397 ⋅20621891.

It can be written as a sum of positive squares in only one way, i.e., 6171202249 + 1099784569 = 78557^2 + 33163^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1817746703 + ... + 1817746706.

Almost surely, 2^7270986818 is an apocalyptic number.

7270986818 is a deficient number, since it is larger than the sum of its proper divisors (3635493412).

7270986818 is a wasteful number, since it uses less digits than its factorization.

7270986818 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3635493411.

The product of its (nonzero) digits is 2709504, while the sum is 56.

The square root of 7270986818 is about 85270.0816113131. The cubic root of 7270986818 is about 1937.3040472683.

The spelling of 7270986818 in words is "seven billion, two hundred seventy million, nine hundred eighty-six thousand, eight hundred eighteen".