10511423406 has 64 divisors (see below), whose sum is σ = 25548307200. Its totient is φ = 3177021600.

The previous prime is 10511423381. The next prime is 10511423411. The reversal of 10511423406 is 60432411501.

It is a happy number.

It is a super-2 number, since 2×10511423406² (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a self number, because there is not a number n which added to its sum of digits gives 10511423406.

It is a congruent number.

It is an unprimeable number.

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 31 ways as a sum of consecutive naturals, for example, 208321 + ... + 253811.

It is an arithmetic number, because the mean of its divisors is an integer number (399192300).

Almost surely, 2^10511423406 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 10511423406, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (12774153600).

10511423406 is an abundant number, since it is smaller than the sum of its proper divisors (15036883794).

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

10511423406 is a wasteful number, since it uses less digits than its factorization.

10511423406 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45902 (or 45896 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 27.

Adding to 10511423406 its reverse (60432411501), we get a palindrome (70943834907).

The spelling of 10511423406 in words is "ten billion, five hundred eleven million, four hundred twenty-three thousand, four hundred six".