27752894463 has 32 divisors (see below), whose sum is σ = 43004564992. Its totient is φ = 15591139200.

The previous prime is 27752894459. The next prime is 27752894497. The reversal of 27752894463 is 36449825772.

It is a Cunningham number, because it is equal to 166592²-1.

It is not a de Polignac number, because 27752894463 - 2² = 27752894459 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 (27752894563) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3494445 + ... + 3502377.

It is an arithmetic number, because the mean of its divisors is an integer number (1343892656).

Almost surely, 2^27752894463 is an apocalyptic number.

27752894463 is a deficient number, since it is larger than the sum of its proper divisors (15251670529).

27752894463 is a wasteful number, since it uses less digits than its factorization.

27752894463 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10735.

The product of its digits is 20321280, while the sum is 57.

The spelling of 27752894463 in words is "twenty-seven billion, seven hundred fifty-two million, eight hundred ninety-four thousand, four hundred sixty-three".