642621514211 has 8 divisors (see below), whose sum is σ = 680240898480. Its totient is φ = 606032798112.

The previous prime is 642621514201. The next prime is 642621514267. The reversal of 642621514211 is 112415126246.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 642621514211 - 2¹⁰ = 642621513187 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (642621514201) 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, 257665760 + ... + 257668253.

It is an arithmetic number, because the mean of its divisors is an integer number (85030112310).

Almost surely, 2^642621514211 is an apocalyptic number.

642621514211 is a deficient number, since it is larger than the sum of its proper divisors (37619384269).

642621514211 is a wasteful number, since it uses less digits than its factorization.

642621514211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 515334085.

The product of its digits is 23040, while the sum is 35.

The spelling of 642621514211 in words is "six hundred forty-two billion, six hundred twenty-one million, five hundred fourteen thousand, two hundred eleven".