21795543370 has 32 divisors (see below), whose sum is σ = 39577936320. Its totient is φ = 8641624320.

The previous prime is 21795543347. The next prime is 21795543377. The reversal of 21795543370 is 7334559712.

It is a self number, because there is not a number n which added to its sum of digits gives 21795543370.

It is not an unprimeable number, because it can be changed into a prime (21795543377) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 600130 + ... + 635410.

It is an arithmetic number, because the mean of its divisors is an integer number (1236810510).

Almost surely, 2^21795543370 is an apocalyptic number.

21795543370 is a deficient number, since it is larger than the sum of its proper divisors (17782392950).

21795543370 is a wasteful number, since it uses less digits than its factorization.

21795543370 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35830.

The product of its (nonzero) digits is 793800, while the sum is 46.

The spelling of 21795543370 in words is "twenty-one billion, seven hundred ninety-five million, five hundred forty-three thousand, three hundred seventy".