12405946749 has 8 divisors (see below), whose sum is σ = 18904299840. Its totient is φ = 7089112416.

The previous prime is 12405946739. The next prime is 12405946769. The reversal of 12405946749 is 94764950421.

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

It is not a de Polignac number, because 12405946749 - 2¹⁵ = 12405913981 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12405946739) 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, 295379664 + ... + 295379705.

It is an arithmetic number, because the mean of its divisors is an integer number (2363037480).

Almost surely, 2^12405946749 is an apocalyptic number.

It is an amenable number.

12405946749 is a deficient number, since it is larger than the sum of its proper divisors (6498353091).

12405946749 is an equidigital number, since it uses as much as digits as its factorization.

12405946749 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 590759379.

The product of its (nonzero) digits is 2177280, while the sum is 51.

The spelling of 12405946749 in words is "twelve billion, four hundred five million, nine hundred forty-six thousand, seven hundred forty-nine".