26036031021 has 32 divisors (see below), whose sum is σ = 46609963008. Its totient is φ = 12484808640.

The previous prime is 26036031013. The next prime is 26036031031. The reversal of 26036031021 is 12013063062.

It is a happy number.

It is not a de Polignac number, because 26036031021 - 2³ = 26036031013 is a prime.

It is a super-2 number, since 2×26036031021² (a number of 22 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 26036030982 and 26036031000.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (26036031011) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 4332001 + ... + 4338006.

It is an arithmetic number, because the mean of its divisors is an integer number (1456561344).

Almost surely, 2^26036031021 is an apocalyptic number.

26036031021 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

It is an amenable number.

26036031021 is a deficient number, since it is larger than the sum of its proper divisors (20573931987).

26036031021 is a wasteful number, since it uses less digits than its factorization.

26036031021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8670041.

The product of its (nonzero) digits is 1296, while the sum is 24.

Adding to 26036031021 its reverse (12013063062), we get a palindrome (38049094083).

The spelling of 26036031021 in words is "twenty-six billion, thirty-six million, thirty-one thousand, twenty-one".