21470065263277 has 4 divisors (see below), whose sum is σ = 21571819127296. Its totient is φ = 21368311399260.

The previous prime is 21470065263253. The next prime is 21470065263287. The reversal of 21470065263277 is 77236256007412.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 21470065263277 - 2⁴³ = 12673972241069 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 (21470065263287) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 50876931693 + ... + 50876932114.

It is an arithmetic number, because the mean of its divisors is an integer number (5392954781824).

Almost surely, 2^{21470065263277} is an apocalyptic number.

It is an amenable number.

21470065263277 is a deficient number, since it is larger than the sum of its proper divisors (101753864019).

21470065263277 is a wasteful number, since it uses less digits than its factorization.

21470065263277 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 101753864018.

The product of its (nonzero) digits is 5927040, while the sum is 52.

The spelling of 21470065263277 in words is "twenty-one trillion, four hundred seventy billion, sixty-five million, two hundred sixty-three thousand, two hundred seventy-seven".