60640006428 has 48 divisors (see below), whose sum is σ = 157237436160. Its totient is φ = 20210429232.

The previous prime is 60640006393. The next prime is 60640006447. The reversal of 60640006428 is 82460004606.

It is a happy number.

60640006428 is a `hidden beast` number, since 6 + 0 + 6 + 4 + 0 + 0 + 0 + 642 + 8 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 60640006392 and 60640006401.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 793675 + ... + 866717.

It is an arithmetic number, because the mean of its divisors is an integer number (3275779920).

Almost surely, 2^60640006428 is an apocalyptic number.

It is an amenable number.

60640006428 is an abundant number, since it is smaller than the sum of its proper divisors (96597429732).

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

60640006428 is a wasteful number, since it uses less digits than its factorization.

60640006428 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 80743 (or 80735 counting only the distinct ones).

The product of its (nonzero) digits is 55296, while the sum is 36.

The spelling of 60640006428 in words is "sixty billion, six hundred forty million, six thousand, four hundred twenty-eight".