10261210426 has 4 divisors (see below), whose sum is σ = 15391815642. Its totient is φ = 5130605212.

The previous prime is 10261210417. The next prime is 10261210429. The reversal of 10261210426 is 62401216201.

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 only one way, i.e., 5191058401 + 5070152025 = 72049^2 + 71205^2 .

It is a super-2 number, since 2×10261210426² (a number of 21 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 10261210426.

It is not an unprimeable number, because it can be changed into a prime (10261210429) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2565302605 + ... + 2565302608.

Almost surely, 2^10261210426 is an apocalyptic number.

10261210426 is a deficient number, since it is larger than the sum of its proper divisors (5130605216).

10261210426 is an equidigital number, since it uses as much as digits as its factorization.

10261210426 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5130605215.

The product of its (nonzero) digits is 1152, while the sum is 25.

Adding to 10261210426 its reverse (62401216201), we get a palindrome (72662426627).

The spelling of 10261210426 in words is "ten billion, two hundred sixty-one million, two hundred ten thousand, four hundred twenty-six".