642213676654 has 32 divisors (see below), whose sum is σ = 1066330645632. Its totient is φ = 287655060000.

The previous prime is 642213676633. The next prime is 642213676661. The reversal of 642213676654 is 456676312246.

642213676654 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 an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 216052 + ... + 1153735.

It is an arithmetic number, because the mean of its divisors is an integer number (33322832676).

Almost surely, 2^642213676654 is an apocalyptic number.

642213676654 is a deficient number, since it is larger than the sum of its proper divisors (424116968978).

642213676654 is a wasteful number, since it uses less digits than its factorization.

642213676654 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1370112.

The product of its digits is 8709120, while the sum is 52.

The spelling of 642213676654 in words is "six hundred forty-two billion, two hundred thirteen million, six hundred seventy-six thousand, six hundred fifty-four".