21000626025036 has 48 divisors (see below), whose sum is σ = 56084389890816. Its totient is φ = 5991315954624.

The previous prime is 21000626025013. The next prime is 21000626025053. The reversal of 21000626025036 is 63052062600012.

It is a junction number, because it is equal to n+sod(n) for n = 21000626024988 and 21000626025006.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 184586746 + ... + 184700481.

It is an arithmetic number, because the mean of its divisors is an integer number (1168424789392).

Almost surely, 2^{21000626025036} is an apocalyptic number.

It is an amenable number.

21000626025036 is an abundant number, since it is smaller than the sum of its proper divisors (35083763865780).

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

21000626025036 is a wasteful number, since it uses less digits than its factorization.

21000626025036 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 369287918 (or 369287916 counting only the distinct ones).

The product of its (nonzero) digits is 25920, while the sum is 33.

Adding to 21000626025036 its reverse (63052062600012), we get a palindrome (84052688625048).

The spelling of 21000626025036 in words is "twenty-one trillion, six hundred twenty-six million, twenty-five thousand, thirty-six".