11397903986 has 32 divisors (see below), whose sum is σ = 19748551680. Its totient is φ = 4832589456.

The previous prime is 11397903949. The next prime is 11397904003. The reversal of 11397903986 is 68930979311.

It is a Smith number, since the sum of its digits (56) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1708325 + ... + 1714983.

It is an arithmetic number, because the mean of its divisors is an integer number (617142240).

Almost surely, 2^11397903986 is an apocalyptic number.

11397903986 is a deficient number, since it is larger than the sum of its proper divisors (8350647694).

11397903986 is a wasteful number, since it uses less digits than its factorization.

11397903986 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7958.

The product of its (nonzero) digits is 2204496, while the sum is 56.

The spelling of 11397903986 in words is "eleven billion, three hundred ninety-seven million, nine hundred three thousand, nine hundred eighty-six".