1604649547674 has 48 divisors (see below), whose sum is σ = 3665304482112. Its totient is φ = 506352870144.

The previous prime is 1604649547607. The next prime is 1604649547679. The reversal of 1604649547674 is 4767459464061.

1604649547674 is a `hidden beast` number, since 1 + 6 + 0 + 4 + 6 + 4 + 95 + 476 + 74 = 666.

It is not an unprimeable number, because it can be changed into a prime (1604649547679) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 19939044 + ... + 20019359.

It is an arithmetic number, because the mean of its divisors is an integer number (76360510044).

Almost surely, 2^{1604649547674} is an apocalyptic number.

1604649547674 is an abundant number, since it is smaller than the sum of its proper divisors (2060654934438).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1604649547674 is a wasteful number, since it uses less digits than its factorization.

1604649547674 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39958531 (or 39958528 counting only the distinct ones).

The product of its (nonzero) digits is 121927680, while the sum is 63.

The spelling of 1604649547674 in words is "one trillion, six hundred four billion, six hundred forty-nine million, five hundred forty-seven thousand, six hundred seventy-four".