642104512093 has 8 divisors (see below), whose sum is σ = 700483535136. Its totient is φ = 583726470000.

The previous prime is 642104512081. The next prime is 642104512177. The reversal of 642104512093 is 390215401246.

It is a happy number.

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 642104512093 - 2¹⁷ = 642104381021 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (642104512003) 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, 2091718 + ... + 2378968.

It is an arithmetic number, because the mean of its divisors is an integer number (87560441892).

Almost surely, 2^642104512093 is an apocalyptic number.

It is an amenable number.

642104512093 is a deficient number, since it is larger than the sum of its proper divisors (58379023043).

642104512093 is a wasteful number, since it uses less digits than its factorization.

642104512093 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 490475.

The product of its (nonzero) digits is 51840, while the sum is 37.

The spelling of 642104512093 in words is "six hundred forty-two billion, one hundred four million, five hundred twelve thousand, ninety-three".