27533786649 has 8 divisors (see below), whose sum is σ = 37075198272. Its totient is φ = 18174116400.

The previous prime is 27533786629. The next prime is 27533786659. The reversal of 27533786649 is 94668733572.

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

It is not a de Polignac number, because 27533786649 - 2¹² = 27533782553 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 27533786592 and 27533786601.

It is not an unprimeable number, because it can be changed into a prime (27533786629) 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, 45434989 + ... + 45435594.

It is an arithmetic number, because the mean of its divisors is an integer number (4634399784).

Almost surely, 2^27533786649 is an apocalyptic number.

It is an amenable number.

27533786649 is a deficient number, since it is larger than the sum of its proper divisors (9541411623).

27533786649 is a wasteful number, since it uses less digits than its factorization.

27533786649 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 90870687.

The product of its digits is 45722880, while the sum is 60.

The spelling of 27533786649 in words is "twenty-seven billion, five hundred thirty-three million, seven hundred eighty-six thousand, six hundred forty-nine".