368799929521 has 27 divisors (see below), whose sum is σ = 391849574571. Its totient is φ = 347087525904.

The previous prime is 368799929507. The next prime is 368799929549. The reversal of 368799929521 is 125929997863.

The square root of 368799929521 is 607289.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 193389737121 + 175410192400 = 439761^2 + 418820^2 .

It is not a de Polignac number, because 368799929521 - 2²¹ = 368797832369 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (368799929221) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 757289140 + ... + 757289626.

Almost surely, 2^368799929521 is an apocalyptic number.

368799929521 is the 607289-th square number.

368799929521 is the 303645-th centered octagonal number.

It is an amenable number.

368799929521 is a deficient number, since it is larger than the sum of its proper divisors (23049645050).

368799929521 is an frugal number, since it uses more digits than its factorization.

368799929521 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1118 (or 559 counting only the distinct ones).

The product of its digits is 132269760, while the sum is 70.

The spelling of 368799929521 in words is "three hundred sixty-eight billion, seven hundred ninety-nine million, nine hundred twenty-nine thousand, five hundred twenty-one".