13950208321 has 27 divisors (see below), whose sum is σ = 16626725409. Its totient is φ = 11670311688.

The previous prime is 13950208319. The next prime is 13950208333. The reversal of 13950208321 is 12380205931.

The square root of 13950208321 is 118111.

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

It is not a de Polignac number, because 13950208321 - 2¹ = 13950208319 is a prime.

It is not an unprimeable number, because it can be changed into a prime (13950208421) by changing a digit.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 38858340 + ... + 38858698.

Almost surely, 2^13950208321 is an apocalyptic number.

13950208321 is the 118111-st square number.

13950208321 is the 59056-th centered octagonal number.

It is an amenable number.

13950208321 is a deficient number, since it is larger than the sum of its proper divisors (2676517088).

13950208321 is an frugal number, since it uses more digits than its factorization.

13950208321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 826 (or 413 counting only the distinct ones).

The product of its (nonzero) digits is 12960, while the sum is 34.

The spelling of 13950208321 in words is "thirteen billion, nine hundred fifty million, two hundred eight thousand, three hundred twenty-one".