11619747009 has 24 divisors (see below), whose sum is σ = 18083217152. Its totient is φ = 7147427040.

The previous prime is 11619746981. The next prime is 11619747031. The reversal of 11619747009 is 90074791611.

It is not a de Polignac number, because 11619747009 - 2⁸ = 11619746753 is a prime.

It is not an unprimeable number, because it can be changed into a prime (11619747059) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 256464 + ... + 298350.

Almost surely, 2^11619747009 is an apocalyptic number.

It is an amenable number.

11619747009 is a deficient number, since it is larger than the sum of its proper divisors (6463470143).

11619747009 is a wasteful number, since it uses less digits than its factorization.

11619747009 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44277 (or 44274 counting only the distinct ones).

The product of its (nonzero) digits is 95256, while the sum is 45.

The spelling of 11619747009 in words is "eleven billion, six hundred nineteen million, seven hundred forty-seven thousand, nine".