17474989249 has 9 divisors (see below), whose sum is σ = 17604562689. Its totient is φ = 17346365460.

The previous prime is 17474989211. The next prime is 17474989267. The reversal of 17474989249 is 94298947471.

The square root of 17474989249 is 132193.

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

It is not a de Polignac number, because 17474989249 - 2²⁵ = 17441434817 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (17474984249) 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, 21547054 + ... + 21547864.

It is an arithmetic number, because the mean of its divisors is an integer number (1956062521).

Almost surely, 2^17474989249 is an apocalyptic number.

17474989249 is the 132193-rd square number.

17474989249 is the 66097-th centered octagonal number.

It is an amenable number.

17474989249 is a deficient number, since it is larger than the sum of its proper divisors (129573440).

17474989249 is an frugal number, since it uses more digits than its factorization.

17474989249 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1948 (or 974 counting only the distinct ones).

The product of its digits is 36578304, while the sum is 64.

Multiplying 17474989249 by its sum of digits (64), we get a square (1118399311936 = 1057544²).

The spelling of 17474989249 in words is "seventeen billion, four hundred seventy-four million, nine hundred eighty-nine thousand, two hundred forty-nine".