642013473074 has 16 divisors (see below), whose sum is σ = 984465304920. Its totient is φ = 313919208960.

The previous prime is 642013473071. The next prime is 642013473097. The reversal of 642013473074 is 470374310246.

It can be written as a sum of positive squares in 4 ways, for example, as 622509954049 + 19503519025 = 788993^2 + 139655^2 .

It is not an unprimeable number, because it can be changed into a prime (642013473071) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15188159 + ... + 15230370.

Almost surely, 2^642013473074 is an apocalyptic number.

642013473074 is a deficient number, since it is larger than the sum of its proper divisors (342451831846).

642013473074 is a wasteful number, since it uses less digits than its factorization.

642013473074 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30418765.

The product of its (nonzero) digits is 338688, while the sum is 41.

The spelling of 642013473074 in words is "six hundred forty-two billion, thirteen million, four hundred seventy-three thousand, seventy-four".