1814400644147 has 32 divisors (see below), whose sum is σ = 2308799668224. Its totient is φ = 1387057996800.

The previous prime is 1814400644123. The next prime is 1814400644153. The reversal of 1814400644147 is 7414460044181.

It is not a de Polignac number, because 1814400644147 - 2¹⁰ = 1814400643123 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1814400644098 and 1814400644107.

It is not an unprimeable number, because it can be changed into a prime (1814400644107) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1270403 + ... + 2289699.

It is an arithmetic number, because the mean of its divisors is an integer number (72149989632).

Almost surely, 2^{1814400644147} is an apocalyptic number.

1814400644147 is a deficient number, since it is larger than the sum of its proper divisors (494399024077).

1814400644147 is a wasteful number, since it uses less digits than its factorization.

1814400644147 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1019979.

The product of its (nonzero) digits is 344064, while the sum is 44.

The spelling of 1814400644147 in words is "one trillion, eight hundred fourteen billion, four hundred million, six hundred forty-four thousand, one hundred forty-seven".