12353785891 has 8 divisors (see below), whose sum is σ = 12728255904. Its totient is φ = 11982799680.

The previous prime is 12353785861. The next prime is 12353785897. The reversal of 12353785891 is 19858735321.

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

It is a cyclic number.

It is not a de Polignac number, because 12353785891 - 2²⁵ = 12320231459 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12353785897) 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, 863751 + ... + 877936.

It is an arithmetic number, because the mean of its divisors is an integer number (1591031988).

Almost surely, 2^12353785891 is an apocalyptic number.

12353785891 is a deficient number, since it is larger than the sum of its proper divisors (374470013).

12353785891 is a wasteful number, since it uses less digits than its factorization.

12353785891 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1741901.

The product of its digits is 1814400, while the sum is 52.

The spelling of 12353785891 in words is "twelve billion, three hundred fifty-three million, seven hundred eighty-five thousand, eight hundred ninety-one".