1813056514438 has 32 divisors (see below), whose sum is σ = 3056333176512. Its totient is φ = 800357606400.

The previous prime is 1813056514411. The next prime is 1813056514447. The reversal of 1813056514438 is 8344156503181.

It is a junction number, because it is equal to n+sod(n) for n = 1813056514391 and 1813056514400.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9256398 + ... + 9450238.

It is an arithmetic number, because the mean of its divisors is an integer number (95510411766).

Almost surely, 2^{1813056514438} is an apocalyptic number.

1813056514438 is a deficient number, since it is larger than the sum of its proper divisors (1243276662074).

1813056514438 is a wasteful number, since it uses less digits than its factorization.

1813056514438 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 209520.

The product of its (nonzero) digits is 1382400, while the sum is 49.

The spelling of 1813056514438 in words is "one trillion, eight hundred thirteen billion, fifty-six million, five hundred fourteen thousand, four hundred thirty-eight".