11948020249 has 27 divisors (see below), whose sum is σ = 13887087669. Its totient is φ = 10270485720.

The previous prime is 11948020241. The next prime is 11948020261. The reversal of 11948020249 is 94202084911.

The square root of 11948020249 is 109307.

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

It is not a de Polignac number, because 11948020249 - 2³ = 11948020241 is a prime.

It is not an unprimeable number, because it can be changed into a prime (11948020241) 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, 22844902 + ... + 22845424.

Almost surely, 2^11948020249 is an apocalyptic number.

11948020249 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

11948020249 is the 109307-th square number.

11948020249 is the 54654-th centered octagonal number.

It is an amenable number.

11948020249 is a deficient number, since it is larger than the sum of its proper divisors (1939067420).

11948020249 is an frugal number, since it uses more digits than its factorization.

11948020249 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1106 (or 553 counting only the distinct ones).

The product of its (nonzero) digits is 41472, while the sum is 40.

The spelling of 11948020249 in words is "eleven billion, nine hundred forty-eight million, twenty thousand, two hundred forty-nine".