27773161328 has 40 divisors (see below), whose sum is σ = 58717234416. Its totient is φ = 12620966400.

The previous prime is 27773161321. The next prime is 27773161333. The reversal of 27773161328 is 82316137772.

It is a super-2 number, since 2×27773161328² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (27773161321) 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, 763850 + ... + 799382.

Almost surely, 2^27773161328 is an apocalyptic number.

It is an amenable number.

27773161328 is an abundant number, since it is smaller than the sum of its proper divisors (30944073088).

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

27773161328 is a wasteful number, since it uses less digits than its factorization.

27773161328 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39993 (or 39987 counting only the distinct ones).

The product of its digits is 592704, while the sum is 47.

The spelling of 27773161328 in words is "twenty-seven billion, seven hundred seventy-three million, one hundred sixty-one thousand, three hundred twenty-eight".