27773273020 has 12 divisors (see below), whose sum is σ = 58323873384. Its totient is φ = 11109309200.

The previous prime is 27773272987. The next prime is 27773273027. The reversal of 27773273020 is 2037237772.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (27773273027) 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, 694331806 + ... + 694331845.

It is an arithmetic number, because the mean of its divisors is an integer number (4860322782).

Almost surely, 2^27773273020 is an apocalyptic number.

27773273020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

27773273020 is an abundant number, since it is smaller than the sum of its proper divisors (30550600364).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

27773273020 is a wasteful number, since it uses less digits than its factorization.

27773273020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1388663660 (or 1388663658 counting only the distinct ones).

The product of its (nonzero) digits is 172872, while the sum is 40.

The spelling of 27773273020 in words is "twenty-seven billion, seven hundred seventy-three million, two hundred seventy-three thousand, twenty".