4191968788 has 12 divisors (see below), whose sum is σ = 8383937632. Its totient is φ = 1796558040.

The previous prime is 4191968773. The next prime is 4191968789. The reversal of 4191968788 is 8878691914.

4191968788 is an admirable number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4191968789) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 74856558 + ... + 74856613.

Almost surely, 2^4191968788 is an apocalyptic number.

It is an amenable number.

4191968788 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

4191968788 is a wasteful number, since it uses less digits than its factorization.

4191968788 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 149713182 (or 149713180 counting only the distinct ones).

The product of its digits is 6967296, while the sum is 61.

The square root of 4191968788 is about 64745.4151890310. The cubic root of 4191968788 is about 1612.3995939965.

The spelling of 4191968788 in words is "four billion, one hundred ninety-one million, nine hundred sixty-eight thousand, seven hundred eighty-eight".