10851981479999 has 8 divisors (see below), whose sum is σ = 12246750259920. Its totient is φ = 9525250201600.

The previous prime is 10851981479987. The next prime is 10851981480001. The reversal of 10851981479999 is 99997418915801.

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

It is a cyclic number.

It is not a de Polignac number, because 10851981479999 - 2³² = 10847686512703 is a prime.

It is a super-3 number, since 3×10851981479999³ (a number of 40 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10851981479909) 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, 17009375042 + ... + 17009375679.

It is an arithmetic number, because the mean of its divisors is an integer number (1530843782490).

Almost surely, 2^{10851981479999} is an apocalyptic number.

10851981479999 is a deficient number, since it is larger than the sum of its proper divisors (1394768779921).

10851981479999 is a wasteful number, since it uses less digits than its factorization.

10851981479999 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34018750761.

The product of its (nonzero) digits is 529079040, while the sum is 80.

It can be divided in two parts, 108519 and 81479999, that added together give a palindrome (81588518).

The spelling of 10851981479999 in words is "ten trillion, eight hundred fifty-one billion, nine hundred eighty-one million, four hundred seventy-nine thousand, nine hundred ninety-nine".