642753135383 has 8 divisors (see below), whose sum is σ = 651575786208. Its totient is φ = 633930966144.

The previous prime is 642753135359. The next prime is 642753135421. The reversal of 642753135383 is 383531357246.

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 642753135383 - 2³⁶ = 574033658647 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (642753135683) 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, 3185891 + ... + 3381627.

It is an arithmetic number, because the mean of its divisors is an integer number (81446973276).

Almost surely, 2^642753135383 is an apocalyptic number.

642753135383 is a deficient number, since it is larger than the sum of its proper divisors (8822650825).

642753135383 is a wasteful number, since it uses less digits than its factorization.

642753135383 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 240793.

The product of its digits is 5443200, while the sum is 50.

The spelling of 642753135383 in words is "six hundred forty-two billion, seven hundred fifty-three million, one hundred thirty-five thousand, three hundred eighty-three".