7210661673 has 16 divisors (see below), whose sum is σ = 10191375936. Its totient is φ = 4519173120.

The previous prime is 7210661669. The next prime is 7210661681. The reversal of 7210661673 is 3761660127.

It is not a de Polignac number, because 7210661673 - 2² = 7210661669 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (7210661683) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 35311 + ... + 125172.

It is an arithmetic number, because the mean of its divisors is an integer number (636960996).

Almost surely, 2^7210661673 is an apocalyptic number.

It is an amenable number.

7210661673 is a deficient number, since it is larger than the sum of its proper divisors (2980714263).

7210661673 is a wasteful number, since it uses less digits than its factorization.

7210661673 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 161384.

The product of its (nonzero) digits is 63504, while the sum is 39.

The square root of 7210661673 is about 84915.6150127878. The cubic root of 7210661673 is about 1931.9314224830.

The spelling of 7210661673 in words is "seven billion, two hundred ten million, six hundred sixty-one thousand, six hundred seventy-three".