7763460721 has 4 divisors (see below), whose sum is σ = 7869809572. Its totient is φ = 7657111872.

The previous prime is 7763460709. The next prime is 7763460767. The reversal of 7763460721 is 1270643677.

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 5694211600 + 2069249121 = 75460^2 + 45489^2 .

It is a cyclic number.

It is not a de Polignac number, because 7763460721 - 2⁹ = 7763460209 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (7763460791) 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 3 ways as a sum of consecutive naturals, for example, 53174316 + ... + 53174461.

It is an arithmetic number, because the mean of its divisors is an integer number (1967452393).

Almost surely, 2^7763460721 is an apocalyptic number.

It is an amenable number.

7763460721 is a deficient number, since it is larger than the sum of its proper divisors (106348851).

7763460721 is a wasteful number, since it uses less digits than its factorization.

7763460721 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 106348850.

The product of its (nonzero) digits is 296352, while the sum is 43.

The square root of 7763460721 is about 88110.5028983492. The cubic root of 7763460721 is about 1980.0908641939.

The spelling of 7763460721 in words is "seven billion, seven hundred sixty-three million, four hundred sixty thousand, seven hundred twenty-one".