7051621105 has 8 divisors (see below), whose sum is σ = 8462529000. Its totient is φ = 5640907776.

The previous prime is 7051621103. The next prime is 7051621117. The reversal of 7051621105 is 5011261507.

7051621105 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 3518031969 + 3533589136 = 59313^2 + 59444^2 .

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 7051621105 - 2¹ = 7051621103 is a prime.

It is not an unprimeable number, because it can be changed into a prime (7051621103) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 48871 + ... + 128419.

It is an arithmetic number, because the mean of its divisors is an integer number (1057816125).

Almost surely, 2^7051621105 is an apocalyptic number.

It is an amenable number.

7051621105 is a deficient number, since it is larger than the sum of its proper divisors (1410907895).

7051621105 is a wasteful number, since it uses less digits than its factorization.

7051621105 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 97283.

The product of its (nonzero) digits is 2100, while the sum is 28.

The square root of 7051621105 is about 83973.9311036467. The cubic root of 7051621105 is about 1917.6219387151.

The spelling of 7051621105 in words is "seven billion, fifty-one million, six hundred twenty-one thousand, one hundred five".