10649436426 has 48 divisors (see below), whose sum is σ = 24367543200. Its totient is φ = 3351992544.

The previous prime is 10649436349. The next prime is 10649436431. The reversal of 10649436426 is 62463494601.

10649436426 is a `hidden beast` number, since 106 + 4 + 94 + 36 + 426 = 666.

It is a super-2 number, since 2×10649436426² (a number of 21 digits) contains 22 as substring.

It is a Smith number, since the sum of its digits (45) coincides with the sum of the digits of its prime factors.

It is a Curzon number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 54280 + ... + 155708.

It is an arithmetic number, because the mean of its divisors is an integer number (507657150).

Almost surely, 2^10649436426 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 10649436426, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (12183771600).

10649436426 is an abundant number, since it is smaller than the sum of its proper divisors (13718106774).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

10649436426 is a wasteful number, since it uses less digits than its factorization.

10649436426 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 101763 (or 101760 counting only the distinct ones).

The product of its (nonzero) digits is 746496, while the sum is 45.

The spelling of 10649436426 in words is "ten billion, six hundred forty-nine million, four hundred thirty-six thousand, four hundred twenty-six".