642796038382 has 16 divisors (see below), whose sum is σ = 971542874880. Its totient is φ = 318949915648.

The previous prime is 642796038289. The next prime is 642796038413. The reversal of 642796038382 is 283830697246.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 485619 + ... + 1233457.

It is an arithmetic number, because the mean of its divisors is an integer number (60721429680).

Almost surely, 2^642796038382 is an apocalyptic number.

642796038382 is a deficient number, since it is larger than the sum of its proper divisors (328746836498).

642796038382 is a wasteful number, since it uses less digits than its factorization.

642796038382 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 751115.

The product of its (nonzero) digits is 20901888, while the sum is 58.

The spelling of 642796038382 in words is "six hundred forty-two billion, seven hundred ninety-six million, thirty-eight thousand, three hundred eighty-two".