60642642440 has 32 divisors (see below), whose sum is σ = 139773899160. Its totient is φ = 23665420800.

The previous prime is 60642642391. The next prime is 60642642449. The reversal of 60642642440 is 4424624606.

It can be written as a sum of positive squares in 4 ways, for example, as 26744677444 + 33897964996 = 163538^2 + 184114^2 .

It is a junction number, because it is equal to n+sod(n) for n = 60642642394 and 60642642403.

It is not an unprimeable number, because it can be changed into a prime (60642642449) 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, 18486971 + ... + 18490250.

Almost surely, 2^60642642440 is an apocalyptic number.

It is an amenable number.

60642642440 is an abundant number, since it is smaller than the sum of its proper divisors (79131256720).

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

60642642440 is a wasteful number, since it uses less digits than its factorization.

60642642440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36977273 (or 36977269 counting only the distinct ones).

The product of its (nonzero) digits is 221184, while the sum is 38.

The spelling of 60642642440 in words is "sixty billion, six hundred forty-two million, six hundred forty-two thousand, four hundred forty".