21795754135 has 8 divisors (see below), whose sum is σ = 26159570496. Its totient is φ = 17433492960.

The previous prime is 21795754093. The next prime is 21795754139. The reversal of 21795754135 is 53145759712.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 21795754135 - 2⁷ = 21795754007 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21795754139) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 357736 + ... + 414205.

It is an arithmetic number, because the mean of its divisors is an integer number (3269946312).

Almost surely, 2^21795754135 is an apocalyptic number.

21795754135 is a deficient number, since it is larger than the sum of its proper divisors (4363816361).

21795754135 is an equidigital number, since it uses as much as digits as its factorization.

21795754135 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 777593.

The product of its digits is 1323000, while the sum is 49.

The spelling of 21795754135 in words is "twenty-one billion, seven hundred ninety-five million, seven hundred fifty-four thousand, one hundred thirty-five".