11902859018 has 8 divisors (see below), whose sum is σ = 17858084580. Its totient is φ = 5950164160.

The previous prime is 11902858991. The next prime is 11902859083. The reversal of 11902859018 is 81095820911.

It can be written as a sum of positive squares in 2 ways, for example, as 11334370369 + 568488649 = 106463^2 + 23843^2 .

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

It is a self number, because there is not a number n which added to its sum of digits gives 11902859018.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 620873 + ... + 639756.

Almost surely, 2^11902859018 is an apocalyptic number.

11902859018 is a deficient number, since it is larger than the sum of its proper divisors (5955225562).

11902859018 is a wasteful number, since it uses less digits than its factorization.

11902859018 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1265352.

The product of its (nonzero) digits is 51840, while the sum is 44.

The spelling of 11902859018 in words is "eleven billion, nine hundred two million, eight hundred fifty-nine thousand, eighteen".