12477783007 has 4 divisors (see below), whose sum is σ = 12509859960. Its totient is φ = 12445706056.

The previous prime is 12477782981. The next prime is 12477783041. The reversal of 12477783007 is 70038777421.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 12477783007 - 2²⁷ = 12343565279 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 (12477783047) 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, 16037893 + ... + 16038670.

It is an arithmetic number, because the mean of its divisors is an integer number (3127464990).

Almost surely, 2^12477783007 is an apocalyptic number.

12477783007 is a deficient number, since it is larger than the sum of its proper divisors (32076953).

12477783007 is an equidigital number, since it uses as much as digits as its factorization.

12477783007 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32076952.

The product of its (nonzero) digits is 460992, while the sum is 46.

The spelling of 12477783007 in words is "twelve billion, four hundred seventy-seven million, seven hundred eighty-three thousand, seven".