1618731604743 has 16 divisors (see below), whose sum is σ = 2355439633536. Its totient is φ = 980665734240.

The previous prime is 1618731604729. The next prime is 1618731604753. The reversal of 1618731604743 is 3474061378161.

It is not a de Polignac number, because 1618731604743 - 2⁸ = 1618731604487 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1618731604753) 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, 9507421 + ... + 9676182.

It is an arithmetic number, because the mean of its divisors is an integer number (147214977096).

Almost surely, 2^{1618731604743} is an apocalyptic number.

1618731604743 is a deficient number, since it is larger than the sum of its proper divisors (736708028793).

1618731604743 is a wasteful number, since it uses less digits than its factorization.

1618731604743 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19186174.

The product of its (nonzero) digits is 2032128, while the sum is 51.

The spelling of 1618731604743 in words is "one trillion, six hundred eighteen billion, seven hundred thirty-one million, six hundred four thousand, seven hundred forty-three".