361253724721 has 8 divisors (see below), whose sum is σ = 364483528704. Its totient is φ = 358024497600.

The previous prime is 361253724703. The next prime is 361253724731. The reversal of 361253724721 is 127427352163.

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 361253724721 - 2⁷ = 361253724593 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (361253724731) 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, 1166880 + ... + 1443646.

It is an arithmetic number, because the mean of its divisors is an integer number (45560441088).

Almost surely, 2^361253724721 is an apocalyptic number.

It is an amenable number.

361253724721 is a deficient number, since it is larger than the sum of its proper divisors (3229803983).

361253724721 is a wasteful number, since it uses less digits than its factorization.

361253724721 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 288431.

The product of its digits is 423360, while the sum is 43.

The spelling of 361253724721 in words is "three hundred sixty-one billion, two hundred fifty-three million, seven hundred twenty-four thousand, seven hundred twenty-one".