12029978591 has 8 divisors (see below), whose sum is σ = 12079695984. Its totient is φ = 11980362240.

The previous prime is 12029978579. The next prime is 12029978593. The reversal of 12029978591 is 19587992021.

It is a happy number.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12029978591 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12029978593) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 218156 + ... + 267678.

It is an arithmetic number, because the mean of its divisors is an integer number (1509961998).

Almost surely, 2^12029978591 is an apocalyptic number.

12029978591 is a deficient number, since it is larger than the sum of its proper divisors (49717393).

12029978591 is an equidigital number, since it uses as much as digits as its factorization.

12029978591 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50521.

The product of its (nonzero) digits is 816480, while the sum is 53.

The spelling of 12029978591 in words is "twelve billion, twenty-nine million, nine hundred seventy-eight thousand, five hundred ninety-one".