10642634641427 has 4 divisors (see below), whose sum is σ = 10642674439536. Its totient is φ = 10642594843320.

The previous prime is 10642634641391. The next prime is 10642634641439. The reversal of 10642634641427 is 72414643624601.

10642634641427 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is not a de Polignac number, because 10642634641427 - 2²⁶ = 10642567532563 is a prime.

It is a super-2 number, since 2×10642634641427² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (10642634641627) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 19495199 + ... + 20033672.

It is an arithmetic number, because the mean of its divisors is an integer number (2660668609884).

Almost surely, 2^{10642634641427} is an apocalyptic number.

10642634641427 is a deficient number, since it is larger than the sum of its proper divisors (39798109).

10642634641427 is an equidigital number, since it uses as much as digits as its factorization.

10642634641427 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39798108.

The product of its (nonzero) digits is 4644864, while the sum is 50.

The spelling of 10642634641427 in words is "ten trillion, six hundred forty-two billion, six hundred thirty-four million, six hundred forty-one thousand, four hundred twenty-seven".