11649402789 has 8 divisors (see below), whose sum is σ = 15542137440. Its totient is φ = 7761468336.

The previous prime is 11649402757. The next prime is 11649402803. The reversal of 11649402789 is 98720494611.

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

It is not a de Polignac number, because 11649402789 - 2⁵ = 11649402757 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11649402719) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1194382 + ... + 1204095.

It is an arithmetic number, because the mean of its divisors is an integer number (1942767180).

Almost surely, 2^11649402789 is an apocalyptic number.

It is an amenable number.

11649402789 is a deficient number, since it is larger than the sum of its proper divisors (3892734651).

11649402789 is a wasteful number, since it uses less digits than its factorization.

11649402789 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2400099.

The product of its (nonzero) digits is 870912, while the sum is 51.

The spelling of 11649402789 in words is "eleven billion, six hundred forty-nine million, four hundred two thousand, seven hundred eighty-nine".