13850879692329 has 9 divisors (see below), whose sum is σ = 20006842349533. Its totient is φ = 9233912351532.

The previous prime is 13850879692301. The next prime is 13850879692333. The reversal of 13850879692329 is 92329697805831.

The square root of 13850879692329 is 3721677.

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

13850879692329 is a `hidden beast` number, since 1 + 3 + 8 + 50 + 87 + 96 + 92 + 329 = 666.

It is a tau number, because it is divible by the number of its divisors (9).

It is not a de Polignac number, because 13850879692329 - 2¹³ = 13850879684137 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13850879692129) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 10544752 + ... + 11785310.

Almost surely, 2^{13850879692329} is an apocalyptic number.

13850879692329 is the 3721677-th square number.

13850879692329 is the 1860839-th centered octagonal number.

It is an amenable number.

13850879692329 is a deficient number, since it is larger than the sum of its proper divisors (6155962657204).

13850879692329 is an frugal number, since it uses more digits than its factorization.

13850879692329 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2481124 (or 1240562 counting only the distinct ones).

The product of its (nonzero) digits is 352719360, while the sum is 72.

The spelling of 13850879692329 in words is "thirteen trillion, eight hundred fifty billion, eight hundred seventy-nine million, six hundred ninety-two thousand, three hundred twenty-nine".