21768895070 has 48 divisors (see below), whose sum is σ = 42454020672. Its totient is φ = 8033201280.

The previous prime is 21768895067. The next prime is 21768895079. The reversal of 21768895070 is 7059886712.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21768895079) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 5106740 + ... + 5111000.

It is an arithmetic number, because the mean of its divisors is an integer number (884458764).

Almost surely, 2^21768895070 is an apocalyptic number.

21768895070 is a deficient number, since it is larger than the sum of its proper divisors (20685125602).

21768895070 is a wasteful number, since it uses less digits than its factorization.

21768895070 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7317 (or 7304 counting only the distinct ones).

The product of its (nonzero) digits is 1693440, while the sum is 53.

The spelling of 21768895070 in words is "twenty-one billion, seven hundred sixty-eight million, eight hundred ninety-five thousand, seventy".