1816514430428 has 12 divisors (see below), whose sum is σ = 3179892751560. Its totient is φ = 907973644272.

The previous prime is 1816514430389. The next prime is 1816514430439. The reversal of 1816514430428 is 8240344156181.

It is a super-2 number, since 2×1816514430428² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 70878323 + ... + 70903946.

It is an arithmetic number, because the mean of its divisors is an integer number (264991062630).

Almost surely, 2^{1816514430428} is an apocalyptic number.

It is an amenable number.

1816514430428 is a deficient number, since it is larger than the sum of its proper divisors (1363378321132).

1816514430428 is a wasteful number, since it uses less digits than its factorization.

1816514430428 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 141785476 (or 141785474 counting only the distinct ones).

The product of its (nonzero) digits is 737280, while the sum is 47.

The spelling of 1816514430428 in words is "one trillion, eight hundred sixteen billion, five hundred fourteen million, four hundred thirty thousand, four hundred twenty-eight".