21350481741356 has 24 divisors (see below), whose sum is σ = 39588527081376. Its totient is φ = 10040341950720.

The previous prime is 21350481741319. The next prime is 21350481741427. The reversal of 21350481741356 is 65314718405312.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 108394235 + ... + 108591026.

It is an arithmetic number, because the mean of its divisors is an integer number (1649521961724).

Almost surely, 2^{21350481741356} is an apocalyptic number.

It is an amenable number.

21350481741356 is a deficient number, since it is larger than the sum of its proper divisors (18238045340020).

21350481741356 is a wasteful number, since it uses less digits than its factorization.

21350481741356 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 216986729 (or 216986727 counting only the distinct ones).

The product of its (nonzero) digits is 2419200, while the sum is 50.

The spelling of 21350481741356 in words is "twenty-one trillion, three hundred fifty billion, four hundred eighty-one million, seven hundred forty-one thousand, three hundred fifty-six".