642923031763 has 2 divisors, whose sum is σ = 642923031764. Its totient is φ = 642923031762.

The previous prime is 642923031743. The next prime is 642923031823. The reversal of 642923031763 is 367130329246.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 642923031763 - 2²¹ = 642920934611 is a prime.

It is not a weakly prime, because it can be changed into another prime (642923031713) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 321461515881 + 321461515882.

It is an arithmetic number, because the mean of its divisors is an integer number (321461515882).

Almost surely, 2^642923031763 is an apocalyptic number.

642923031763 is a deficient number, since it is larger than the sum of its proper divisors (1).

642923031763 is an equidigital number, since it uses as much as digits as its factorization.

642923031763 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 979776, while the sum is 46.

The spelling of 642923031763 in words is "six hundred forty-two billion, nine hundred twenty-three million, thirty-one thousand, seven hundred sixty-three".