11643992458 has 32 divisors (see below), whose sum is σ = 20256203520. Its totient is φ = 4916661120.

The previous prime is 11643992441. The next prime is 11643992473. The reversal of 11643992458 is 85429934611.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1037883 + ... + 1049041.

It is an arithmetic number, because the mean of its divisors is an integer number (633006360).

Almost surely, 2^11643992458 is an apocalyptic number.

11643992458 is a deficient number, since it is larger than the sum of its proper divisors (8612211062).

11643992458 is a wasteful number, since it uses less digits than its factorization.

11643992458 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12262.

The product of its digits is 1866240, while the sum is 52.

The spelling of 11643992458 in words is "eleven billion, six hundred forty-three million, nine hundred ninety-two thousand, four hundred fifty-eight".