11973208490 has 8 divisors (see below), whose sum is σ = 21551775300. Its totient is φ = 4789283392.

The previous prime is 11973208427. The next prime is 11973208493. The reversal of 11973208490 is 9480237911.

It can be written as a sum of positive squares in 2 ways, for example, as 11855507689 + 117700801 = 108883^2 + 10849^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (11973208493) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 598660415 + ... + 598660434.

Almost surely, 2^11973208490 is an apocalyptic number.

11973208490 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

11973208490 is a deficient number, since it is larger than the sum of its proper divisors (9578566810).

11973208490 is a wasteful number, since it uses less digits than its factorization.

11973208490 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1197320856.

The product of its (nonzero) digits is 108864, while the sum is 44.

The spelling of 11973208490 in words is "eleven billion, nine hundred seventy-three million, two hundred eight thousand, four hundred ninety".