2124454563545 has 16 divisors (see below), whose sum is σ = 2582592949440. Its totient is φ = 1677438867264.

The previous prime is 2124454563541. The next prime is 2124454563613. The reversal of 2124454563545 is 5453654544212.

It is a cyclic number.

It is not a de Polignac number, because 2124454563545 - 2² = 2124454563541 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2124454563493 and 2124454563502.

It is not an unprimeable number, because it can be changed into a prime (2124454563541) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2088974 + ... + 2934743.

It is an arithmetic number, because the mean of its divisors is an integer number (161412059340).

Almost surely, 2^{2124454563545} is an apocalyptic number.

It is an amenable number.

2124454563545 is a deficient number, since it is larger than the sum of its proper divisors (458138385895).

2124454563545 is a wasteful number, since it uses less digits than its factorization.

2124454563545 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5024824.

The product of its digits is 11520000, while the sum is 50.

The spelling of 2124454563545 in words is "two trillion, one hundred twenty-four billion, four hundred fifty-four million, five hundred sixty-three thousand, five hundred forty-five".