7271705851 has 4 divisors (see below), whose sum is σ = 7699453272. Its totient is φ = 6843958432.

The previous prime is 7271705813. The next prime is 7271705863. The reversal of 7271705851 is 1585071727.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 7271705851 - 2¹⁹ = 7271181563 is a prime.

It is a super-3 number, since 3×7271705851³ (a number of 31 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 7271705798 and 7271705807.

It is not an unprimeable number, because it can be changed into a prime (7271705801) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 213873685 + ... + 213873718.

It is an arithmetic number, because the mean of its divisors is an integer number (1924863318).

Almost surely, 2^7271705851 is an apocalyptic number.

7271705851 is a deficient number, since it is larger than the sum of its proper divisors (427747421).

7271705851 is a wasteful number, since it uses less digits than its factorization.

7271705851 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 427747420.

The product of its (nonzero) digits is 137200, while the sum is 43.

The square root of 7271705851 is about 85274.2977162521. The cubic root of 7271705851 is about 1937.3679056166.

The spelling of 7271705851 in words is "seven billion, two hundred seventy-one million, seven hundred five thousand, eight hundred fifty-one".