7746052721 has 8 divisors (see below), whose sum is σ = 8455637088. Its totient is φ = 7037368000.

The previous prime is 7746052697. The next prime is 7746052729. The reversal of 7746052721 is 1272506477.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-7746052721 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (7746052729) 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, 206840 + ... + 241401.

It is an arithmetic number, because the mean of its divisors is an integer number (1056954636).

Almost surely, 2^7746052721 is an apocalyptic number.

It is an amenable number.

7746052721 is a deficient number, since it is larger than the sum of its proper divisors (709584367).

7746052721 is a wasteful number, since it uses less digits than its factorization.

7746052721 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 449823.

The product of its (nonzero) digits is 164640, while the sum is 41.

The square root of 7746052721 is about 88011.6624147050. The cubic root of 7746052721 is about 1978.6097713871.

The spelling of 7746052721 in words is "seven billion, seven hundred forty-six million, fifty-two thousand, seven hundred twenty-one".