27020828629 has 4 divisors (see below), whose sum is σ = 27025935084. Its totient is φ = 27015722176.

The previous prime is 27020828603. The next prime is 27020828633. The reversal of 27020828629 is 92682802072.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 19347419025 + 7673409604 = 139095^2 + 87598^2 .

It is a cyclic number.

It is not a de Polignac number, because 27020828629 - 2²¹ = 27018731477 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 (27020828669) 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, 2545282 + ... + 2555875.

It is an arithmetic number, because the mean of its divisors is an integer number (6756483771).

Almost surely, 2^27020828629 is an apocalyptic number.

It is an amenable number.

27020828629 is a deficient number, since it is larger than the sum of its proper divisors (5106455).

27020828629 is an equidigital number, since it uses as much as digits as its factorization.

27020828629 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5106454.

The product of its (nonzero) digits is 387072, while the sum is 46.

The spelling of 27020828629 in words is "twenty-seven billion, twenty million, eight hundred twenty-eight thousand, six hundred twenty-nine".