642796038383 has 4 divisors (see below), whose sum is σ = 647857424640. Its totient is φ = 637734652128.

The previous prime is 642796038289. The next prime is 642796038413. The reversal of 642796038383 is 383830697246.

642796038383 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 642796038383 - 2²⁶ = 642728929519 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 (642796038583) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2530692938 + ... + 2530693191.

It is an arithmetic number, because the mean of its divisors is an integer number (161964356160).

Almost surely, 2^642796038383 is an apocalyptic number.

642796038383 is a deficient number, since it is larger than the sum of its proper divisors (5061386257).

642796038383 is a wasteful number, since it uses less digits than its factorization.

642796038383 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5061386256.

The product of its (nonzero) digits is 31352832, while the sum is 59.

The spelling of 642796038383 in words is "six hundred forty-two billion, seven hundred ninety-six million, thirty-eight thousand, three hundred eighty-three".