15049646329 has 9 divisors (see below), whose sum is σ = 15285968901. Its totient is φ = 14816928060.

The previous prime is 15049646317. The next prime is 15049646333. The reversal of 15049646329 is 92364694051.

The square root of 15049646329 is 122677.

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

It is not a de Polignac number, because 15049646329 - 2¹³ = 15049638137 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (15049646399) 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, 8218444 + ... + 8220274.

It is an arithmetic number, because the mean of its divisors is an integer number (1698440989).

Almost surely, 2^15049646329 is an apocalyptic number.

15049646329 is the 122677-th square number.

15049646329 is the 61339-th centered octagonal number.

It is an amenable number.

15049646329 is a deficient number, since it is larger than the sum of its proper divisors (236322572).

15049646329 is an frugal number, since it uses more digits than its factorization.

15049646329 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3796 (or 1898 counting only the distinct ones).

The product of its (nonzero) digits is 1399680, while the sum is 49.

Multiplying 15049646329 by its sum of digits (49), we get a square (737432670121 = 858739²).

The spelling of 15049646329 in words is "fifteen billion, forty-nine million, six hundred forty-six thousand, three hundred twenty-nine".