11933370978 has 16 divisors (see below), whose sum is σ = 23871027360. Its totient is φ = 3977076096.

The previous prime is 11933370973. The next prime is 11933371003. The reversal of 11933370978 is 87907333911.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 11933370978.

It is not an unprimeable number, because it can be changed into a prime (11933370973) 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, 141775 + ... + 209682.

It is an arithmetic number, because the mean of its divisors is an integer number (1491939210).

Almost surely, 2^11933370978 is an apocalyptic number.

11933370978 is an abundant number, since it is smaller than the sum of its proper divisors (11937656382).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

11933370978 is a wasteful number, since it uses less digits than its factorization.

11933370978 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 357121.

The product of its (nonzero) digits is 857304, while the sum is 51.

The spelling of 11933370978 in words is "eleven billion, nine hundred thirty-three million, three hundred seventy thousand, nine hundred seventy-eight".