1818212124547 has 16 divisors (see below), whose sum is σ = 2298280610752. Its totient is φ = 1399704727680.

The previous prime is 1818212124499. The next prime is 1818212124557. The reversal of 1818212124547 is 7454212128181.

It is not a de Polignac number, because 1818212124547 - 2³⁵ = 1783852386179 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1818212124497 and 1818212124506.

It is not an unprimeable number, because it can be changed into a prime (1818212124557) 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, 270001404 + ... + 270008137.

It is an arithmetic number, because the mean of its divisors is an integer number (143642538172).

Almost surely, 2^{1818212124547} is an apocalyptic number.

1818212124547 is a deficient number, since it is larger than the sum of its proper divisors (480068486205).

1818212124547 is a wasteful number, since it uses less digits than its factorization.

1818212124547 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 540009598.

The product of its digits is 286720, while the sum is 46.

The spelling of 1818212124547 in words is "one trillion, eight hundred eighteen billion, two hundred twelve million, one hundred twenty-four thousand, five hundred forty-seven".