7047452381 has 8 divisors (see below), whose sum is σ = 7115836728. Its totient is φ = 6979392000.

The previous prime is 7047452369. The next prime is 7047452383. The reversal of 7047452381 is 1832547407.

It can be written as a sum of positive squares in 4 ways, for example, as 415956025 + 6631496356 = 20395^2 + 81434^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 7047452381 - 2¹⁰ = 7047451357 is a prime.

It is a super-2 number, since 2×7047452381² = 99333170124925138322, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7047452383) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 37160 + ... + 124401.

It is an arithmetic number, because the mean of its divisors is an integer number (889479591).

Almost surely, 2^7047452381 is an apocalyptic number.

It is an amenable number.

7047452381 is a deficient number, since it is larger than the sum of its proper divisors (68384347).

7047452381 is a wasteful number, since it uses less digits than its factorization.

7047452381 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 161983.

The product of its (nonzero) digits is 188160, while the sum is 41.

The square root of 7047452381 is about 83949.1058975615. The cubic root of 7047452381 is about 1917.2439824843.

Adding to 7047452381 its reverse (1832547407), we get a palindrome (8879999788).

The spelling of 7047452381 in words is "seven billion, forty-seven million, four hundred fifty-two thousand, three hundred eighty-one".