7284551261 has 4 divisors (see below), whose sum is σ = 7844901372. Its totient is φ = 6724201152.

The previous prime is 7284551233. The next prime is 7284551321. The reversal of 7284551261 is 1621554827.

7284551261 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

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

It can be written as a sum of positive squares in 2 ways, for example, as 4990716025 + 2293835236 = 70645^2 + 47894^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-7284551261 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7284550261) 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, 280175036 + ... + 280175061.

It is an arithmetic number, because the mean of its divisors is an integer number (1961225343).

Almost surely, 2^7284551261 is an apocalyptic number.

It is an amenable number.

7284551261 is a deficient number, since it is larger than the sum of its proper divisors (560350111).

7284551261 is a wasteful number, since it uses less digits than its factorization.

7284551261 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 560350110.

The product of its digits is 134400, while the sum is 41.

The square root of 7284551261 is about 85349.5826644747. The cubic root of 7284551261 is about 1938.5080161644.

The spelling of 7284551261 in words is "seven billion, two hundred eighty-four million, five hundred fifty-one thousand, two hundred sixty-one".