1816311462436 has 27 divisors (see below), whose sum is σ = 3254391443163. Its totient is φ = 886979226840.

The previous prime is 1816311462403. The next prime is 1816311462463. The reversal of 1816311462436 is 6342641136181.

It is a happy number.

The square root of 1816311462436 is 1347706.

It is a perfect power (a square), and thus also a powerful number.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 115894881 + ... + 115910551.

Almost surely, 2^{1816311462436} is an apocalyptic number.

1816311462436 is the 1347706-th square number.

It is an amenable number.

1816311462436 is a deficient number, since it is larger than the sum of its proper divisors (1438079980727).

1816311462436 is an frugal number, since it uses more digits than its factorization.

1816311462436 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31432 (or 15716 counting only the distinct ones).

The product of its digits is 497664, while the sum is 46.

The spelling of 1816311462436 in words is "one trillion, eight hundred sixteen billion, three hundred eleven million, four hundred sixty-two thousand, four hundred thirty-six".