11899678024 has 48 divisors (see below), whose sum is σ = 24491384100. Its totient is φ = 5416879104.

The previous prime is 11899678001. The next prime is 11899678069. The reversal of 11899678024 is 42087699811.

It is a happy number.

It can be written as a sum of positive squares in 6 ways, for example, as 319765924 + 11579912100 = 17882^2 + 107610^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 38412 + ... + 158980.

Almost surely, 2^11899678024 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 11899678024, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (12245692050).

11899678024 is an abundant number, since it is smaller than the sum of its proper divisors (12591706076).

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

11899678024 is a wasteful number, since it uses less digits than its factorization.

11899678024 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 120674 (or 120657 counting only the distinct ones).

The product of its (nonzero) digits is 1741824, while the sum is 55.

The spelling of 11899678024 in words is "eleven billion, eight hundred ninety-nine million, six hundred seventy-eight thousand, twenty-four".