12405124382776 has 64 divisors (see below), whose sum is σ = 25142291748000. Its totient is φ = 5718773975040.

The previous prime is 12405124382773. The next prime is 12405124382839. The reversal of 12405124382776 is 67728342150421.

It is a super-2 number, since 2×12405124382776² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12405124382773) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 115450 + ... + 4982326.

Almost surely, 2^{12405124382776} is an apocalyptic number.

It is an amenable number.

12405124382776 is an abundant number, since it is smaller than the sum of its proper divisors (12737167365224).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12405124382776 is a wasteful number, since it uses less digits than its factorization.

12405124382776 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4867352 (or 4867348 counting only the distinct ones).

The product of its (nonzero) digits is 4515840, while the sum is 52.

The spelling of 12405124382776 in words is "twelve trillion, four hundred five billion, one hundred twenty-four million, three hundred eighty-two thousand, seven hundred seventy-six".