7225786849 has 4 divisors (see below), whose sum is σ = 7606091440. Its totient is φ = 6845482260.

The previous prime is 7225786831. The next prime is 7225786871. The reversal of 7225786849 is 9486875227.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a de Polignac number, because none of the positive numbers 2^k-7225786849 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 7225786793 and 7225786802.

It is not an unprimeable number, because it can be changed into a prime (7225786819) 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, 190152267 + ... + 190152304.

It is an arithmetic number, because the mean of its divisors is an integer number (1901522860).

Almost surely, 2^7225786849 is an apocalyptic number.

It is an amenable number.

7225786849 is a deficient number, since it is larger than the sum of its proper divisors (380304591).

7225786849 is a wasteful number, since it uses less digits than its factorization.

7225786849 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 380304590.

The product of its digits is 13547520, while the sum is 58.

The square root of 7225786849 is about 85004.6283975173. The cubic root of 7225786849 is about 1933.2812937604.

The spelling of 7225786849 in words is "seven billion, two hundred twenty-five million, seven hundred eighty-six thousand, eight hundred forty-nine".