642277627313 has 32 divisors (see below), whose sum is σ = 768959778816. Its totient is φ = 524518555968.

The previous prime is 642277627273. The next prime is 642277627349. The reversal of 642277627313 is 313726772246.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-642277627313 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (642277627363) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 77725220 + ... + 77733482.

It is an arithmetic number, because the mean of its divisors is an integer number (24029993088).

Almost surely, 2^642277627313 is an apocalyptic number.

It is an amenable number.

642277627313 is a deficient number, since it is larger than the sum of its proper divisors (126682151503).

642277627313 is a wasteful number, since it uses less digits than its factorization.

642277627313 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10133.

The product of its digits is 3556224, while the sum is 50.

The spelling of 642277627313 in words is "six hundred forty-two billion, two hundred seventy-seven million, six hundred twenty-seven thousand, three hundred thirteen".