11899478708 has 48 divisors (see below), whose sum is σ = 23765207760. Its totient is φ = 5173324800.

The previous prime is 11899478699. The next prime is 11899478761. The reversal of 11899478708 is 80787499811.

It can be written as a sum of positive squares in 8 ways, for example, as 1582607524 + 10316871184 = 39782^2 + 101572^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 34403 + ... + 158058.

It is an arithmetic number, because the mean of its divisors is an integer number (495108495).

Almost surely, 2^11899478708 is an apocalyptic number.

It is an amenable number.

11899478708 is a deficient number, since it is larger than the sum of its proper divisors (11865729052).

11899478708 is a wasteful number, since it uses less digits than its factorization.

11899478708 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 192548 (or 192546 counting only the distinct ones).

The product of its (nonzero) digits is 8128512, while the sum is 62.

The spelling of 11899478708 in words is "eleven billion, eight hundred ninety-nine million, four hundred seventy-eight thousand, seven hundred eight".