10642650643 has 8 divisors (see below), whose sum is σ = 11107653408. Its totient is φ = 10177837824.

The previous prime is 10642650619. The next prime is 10642650677. The reversal of 10642650643 is 34605624601.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a de Polignac number, because none of the positive numbers 2^k-10642650643 is a prime.

It is a super-2 number, since 2×10642650643² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (10642650943) by changing a digit.

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, 73621 + ... + 163417.

It is an arithmetic number, because the mean of its divisors is an integer number (1388456676).

Almost surely, 2^10642650643 is an apocalyptic number.

10642650643 is a deficient number, since it is larger than the sum of its proper divisors (465002765).

10642650643 is an equidigital number, since it uses as much as digits as its factorization.

10642650643 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 94973.

The product of its (nonzero) digits is 103680, while the sum is 37.

The spelling of 10642650643 in words is "ten billion, six hundred forty-two million, six hundred fifty thousand, six hundred forty-three".