3642257547678 has 32 divisors (see below), whose sum is σ = 7302326976000. Its totient is φ = 1211119346880.

The previous prime is 3642257547671. The next prime is 3642257547683. The reversal of 3642257547678 is 8767457522463.

3642257547678 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3642257547671) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6562651 + ... + 7095977.

It is an arithmetic number, because the mean of its divisors is an integer number (228197718000).

Almost surely, 2^{3642257547678} is an apocalyptic number.

3642257547678 is an abundant number, since it is smaller than the sum of its proper divisors (3660069428322).

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

3642257547678 is a wasteful number, since it uses less digits than its factorization.

3642257547678 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 536112.

The product of its digits is 474163200, while the sum is 66.

The spelling of 3642257547678 in words is "three trillion, six hundred forty-two billion, two hundred fifty-seven million, five hundred forty-seven thousand, six hundred seventy-eight".