642510762803 has 64 divisors (see below), whose sum is σ = 853157760000. Its totient is φ = 479468408832.

The previous prime is 642510762743. The next prime is 642510762821. The reversal of 642510762803 is 308267015246.

It is not a de Polignac number, because 642510762803 - 2⁸ = 642510762547 is a prime.

It is not an unprimeable number, because it can be changed into a prime (642510762853) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 19214963 + ... + 19248371.

It is an arithmetic number, because the mean of its divisors is an integer number (13330590000).

Almost surely, 2^642510762803 is an apocalyptic number.

642510762803 is a deficient number, since it is larger than the sum of its proper divisors (210646997197).

642510762803 is a wasteful number, since it uses less digits than its factorization.

642510762803 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33689 (or 33675 counting only the distinct ones).

The product of its (nonzero) digits is 483840, while the sum is 44.

The spelling of 642510762803 in words is "six hundred forty-two billion, five hundred ten million, seven hundred sixty-two thousand, eight hundred three".