10642634641426 has 4 divisors (see below), whose sum is σ = 15963951962142. Its totient is φ = 5321317320712.

The previous prime is 10642634641391. The next prime is 10642634641439. The reversal of 10642634641426 is 62414643624601.

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

It can be written as a sum of positive squares in only one way, i.e., 9763118910801 + 879515730625 = 3124599^2 + 937825^2 .

It is a super-2 number, since 2×10642634641426² (a number of 27 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 10642634641426.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2660658660355 + ... + 2660658660358.

Almost surely, 2^{10642634641426} is an apocalyptic number.

10642634641426 is a deficient number, since it is larger than the sum of its proper divisors (5321317320716).

10642634641426 is an equidigital number, since it uses as much as digits as its factorization.

10642634641426 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5321317320715.

The product of its (nonzero) digits is 3981312, while the sum is 49.

The spelling of 10642634641426 in words is "ten trillion, six hundred forty-two billion, six hundred thirty-four million, six hundred forty-one thousand, four hundred twenty-six".