10642747432738 has 4 divisors (see below), whose sum is σ = 15964121149110. Its totient is φ = 5321373716368.

The previous prime is 10642747432673. The next prime is 10642747432739. The reversal of 10642747432738 is 83723474724601.

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., 6554332180449 + 4088415252289 = 2560143^2 + 2021983^2 .

It is a super-2 number, since 2×10642747432738² (a number of 27 digits) contains 22 as substring.

It is a Smith number, since the sum of its digits (58) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is not an unprimeable number, because it can be changed into a prime (10642747432739) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2660686858183 + ... + 2660686858186.

Almost surely, 2^{10642747432738} is an apocalyptic number.

10642747432738 is a deficient number, since it is larger than the sum of its proper divisors (5321373716372).

10642747432738 is an equidigital number, since it uses as much as digits as its factorization.

10642747432738 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5321373716371.

The product of its (nonzero) digits is 37933056, while the sum is 58.

The spelling of 10642747432738 in words is "ten trillion, six hundred forty-two billion, seven hundred forty-seven million, four hundred thirty-two thousand, seven hundred thirty-eight".