27664076631 has 8 divisors (see below), whose sum is σ = 36892076400. Its totient is φ = 18439397312.

The previous prime is 27664076621. The next prime is 27664076651. The reversal of 27664076631 is 13667046672.

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

It is a cyclic number.

It is not a de Polignac number, because 27664076631 - 2¹¹ = 27664074583 is a prime.

It is a super-2 number, since 2×27664076631² (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 (27664076621) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 810606 + ... + 844043.

It is an arithmetic number, because the mean of its divisors is an integer number (4611509550).

Almost surely, 2^27664076631 is an apocalyptic number.

27664076631 is a deficient number, since it is larger than the sum of its proper divisors (9227999769).

27664076631 is a wasteful number, since it uses less digits than its factorization.

27664076631 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1660225.

The product of its (nonzero) digits is 1524096, while the sum is 48.

The spelling of 27664076631 in words is "twenty-seven billion, six hundred sixty-four million, seventy-six thousand, six hundred thirty-one".