10636421044 has 12 divisors (see below), whose sum is σ = 18643909284. Its totient is φ = 5309589824.

The previous prime is 10636421041. The next prime is 10636421063. The reversal of 10636421044 is 44012463601.

It can be written as a sum of positive squares in 2 ways, for example, as 1293265444 + 9343155600 = 35962^2 + 96660^2 .

It is a super-2 number, since 2×10636421044² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 10636420997 and 10636421015.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10636421041) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2152399 + ... + 2157334.

It is an arithmetic number, because the mean of its divisors is an integer number (1553659107).

Almost surely, 2^10636421044 is an apocalyptic number.

It is an amenable number.

10636421044 is a deficient number, since it is larger than the sum of its proper divisors (8007488240).

10636421044 is a wasteful number, since it uses less digits than its factorization.

10636421044 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4310354 (or 4310352 counting only the distinct ones).

The product of its (nonzero) digits is 13824, while the sum is 31.

Adding to 10636421044 its reverse (44012463601), we get a palindrome (54648884645).

The spelling of 10636421044 in words is "ten billion, six hundred thirty-six million, four hundred twenty-one thousand, forty-four".