361207968721 has 8 divisors (see below), whose sum is σ = 370980509544. Its totient is φ = 351435962880.

The previous prime is 361207968689. The next prime is 361207968731. The reversal of 361207968721 is 127869702163.

It can be written as a sum of positive squares in 4 ways, for example, as 49720080400 + 311487888321 = 222980^2 + 558111^2 .

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 361207968721 - 2⁵ = 361207968689 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (361207968731) 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, 1501761 + ... + 1725601.

It is an arithmetic number, because the mean of its divisors is an integer number (46372563693).

Almost surely, 2^361207968721 is an apocalyptic number.

It is an amenable number.

361207968721 is a deficient number, since it is larger than the sum of its proper divisors (9772540823).

361207968721 is a wasteful number, since it uses less digits than its factorization.

361207968721 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 267491.

The product of its (nonzero) digits is 1524096, while the sum is 52.

The spelling of 361207968721 in words is "three hundred sixty-one billion, two hundred seven million, nine hundred sixty-eight thousand, seven hundred twenty-one".