12277732424 has 8 divisors (see below), whose sum is σ = 23020748310. Its totient is φ = 6138866208.

The previous prime is 12277732409. The next prime is 12277732427. The reversal of 12277732424 is 42423777221.

It can be written as a sum of positive squares in only one way, i.e., 12269992900 + 7739524 = 110770^2 + 2782^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is not an unprimeable number, because it can be changed into a prime (12277732427) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 767358269 + ... + 767358284.

Almost surely, 2^12277732424 is an apocalyptic number.

It is an amenable number.

12277732424 is a deficient number, since it is larger than the sum of its proper divisors (10743015886).

12277732424 is a wasteful number, since it uses less digits than its factorization.

12277732424 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1534716559 (or 1534716555 counting only the distinct ones).

The product of its digits is 263424, while the sum is 41.

The spelling of 12277732424 in words is "twelve billion, two hundred seventy-seven million, seven hundred thirty-two thousand, four hundred twenty-four".