10519789818 has 24 divisors (see below), whose sum is σ = 21956858784. Its totient is φ = 3353751720.

The previous prime is 10519789811. The next prime is 10519789849. The reversal of 10519789818 is 81898791501.

It is a super-2 number, since 2×10519789818² (a number of 21 digits) contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10519789811) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1200513 + ... + 1209243.

It is an arithmetic number, because the mean of its divisors is an integer number (914869116).

Almost surely, 2^10519789818 is an apocalyptic number.

10519789818 is an abundant number, since it is smaller than the sum of its proper divisors (11437068966).

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

10519789818 is an frugal number, since it uses more digits than its factorization.

10519789818 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17490 (or 8759 counting only the distinct ones).

The product of its (nonzero) digits is 1451520, while the sum is 57.

The spelling of 10519789818 in words is "ten billion, five hundred nineteen million, seven hundred eighty-nine thousand, eight hundred eighteen".