11688667902 has 56 divisors (see below), whose sum is σ = 26308466280. Its totient is φ = 3893112720.

The previous prime is 11688667871. The next prime is 11688667933. The reversal of 11688667902 is 20976688611.

It is an interprime number because it is at equal distance from previous prime (11688667871) and next prime (11688667933).

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 27 ways as a sum of consecutive naturals, for example, 2489377 + ... + 2494067.

Almost surely, 2^11688667902 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 11688667902, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (13154233140).

11688667902 is an abundant number, since it is smaller than the sum of its proper divisors (14619798378).

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

11688667902 is an equidigital number, since it uses as much as digits as its factorization.

11688667902 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6420 (or 6405 counting only the distinct ones).

The product of its (nonzero) digits is 1741824, while the sum is 54.

The spelling of 11688667902 in words is "eleven billion, six hundred eighty-eight million, six hundred sixty-seven thousand, nine hundred two".