1601428745873 has 24 divisors (see below), whose sum is σ = 1855402029600. Its totient is φ = 1377353134080.

The previous prime is 1601428745843. The next prime is 1601428745899. The reversal of 1601428745873 is 3785478241061.

It is not a de Polignac number, because 1601428745873 - 2⁸ = 1601428745617 is a prime.

It is a super-2 number, since 2×1601428745873² (a number of 25 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1601428745843) 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, 1227665 + ... + 2170257.

It is an arithmetic number, because the mean of its divisors is an integer number (77308417900).

Almost surely, 2^{1601428745873} is an apocalyptic number.

It is an amenable number.

1601428745873 is a deficient number, since it is larger than the sum of its proper divisors (253973283727).

1601428745873 is a wasteful number, since it uses less digits than its factorization.

1601428745873 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 943373 (or 943362 counting only the distinct ones).

The product of its (nonzero) digits is 9031680, while the sum is 56.

The spelling of 1601428745873 in words is "one trillion, six hundred one billion, four hundred twenty-eight million, seven hundred forty-five thousand, eight hundred seventy-three".