13273078621 has 8 divisors (see below), whose sum is σ = 14816460384. Its totient is φ = 11785819920.

The previous prime is 13273078619. The next prime is 13273078673. The reversal of 13273078621 is 12687037231.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 13273078621 - 2¹ = 13273078619 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13273078601) 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, 14030266 + ... + 14031211.

It is an arithmetic number, because the mean of its divisors is an integer number (1852057548).

Almost surely, 2^13273078621 is an apocalyptic number.

13273078621 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

13273078621 is a deficient number, since it is larger than the sum of its proper divisors (1543381763).

13273078621 is a wasteful number, since it uses less digits than its factorization.

13273078621 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28061531.

The product of its (nonzero) digits is 84672, while the sum is 40.

The spelling of 13273078621 in words is "thirteen billion, two hundred seventy-three million, seventy-eight thousand, six hundred twenty-one".