10107726505 has 4 divisors (see below), whose sum is σ = 12129271812. Its totient is φ = 8086181200.

The previous prime is 10107726481. The next prime is 10107726509. The reversal of 10107726505 is 50562770101.

It is a happy number.

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

It can be written as a sum of positive squares in 2 ways, for example, as 1876882329 + 8230844176 = 43323^2 + 90724^2 .

It is a de Polignac number, because none of the positive numbers 2^k-10107726505 is a prime.

It is a super-2 number, since 2×10107726505² (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 (10107726509) 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 3 ways as a sum of consecutive naturals, for example, 1010772646 + ... + 1010772655.

It is an arithmetic number, because the mean of its divisors is an integer number (3032317953).

Almost surely, 2^10107726505 is an apocalyptic number.

It is an amenable number.

10107726505 is a deficient number, since it is larger than the sum of its proper divisors (2021545307).

10107726505 is an equidigital number, since it uses as much as digits as its factorization.

10107726505 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2021545306.

The product of its (nonzero) digits is 14700, while the sum is 34.

The spelling of 10107726505 in words is "ten billion, one hundred seven million, seven hundred twenty-six thousand, five hundred five".