27606466431 has 12 divisors (see below), whose sum is σ = 40140088560. Its totient is φ = 18282427200.

The previous prime is 27606466417. The next prime is 27606466543. The reversal of 27606466431 is 13466460672.

It is a happy number.

27606466431 is a `hidden beast` number, since 2 + 7 + 606 + 4 + 6 + 6 + 4 + 31 = 666.

It is not a de Polignac number, because 27606466431 - 2⁹ = 27606465919 is a prime.

It is a super-2 number, since 2×27606466431² (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 (27606466231) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 10155546 + ... + 10158263.

It is an arithmetic number, because the mean of its divisors is an integer number (3345007380).

Almost surely, 2^27606466431 is an apocalyptic number.

27606466431 is a deficient number, since it is larger than the sum of its proper divisors (12533622129).

27606466431 is a wasteful number, since it uses less digits than its factorization.

27606466431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20313966 (or 20313963 counting only the distinct ones).

The product of its (nonzero) digits is 870912, while the sum is 45.

The spelling of 27606466431 in words is "twenty-seven billion, six hundred six million, four hundred sixty-six thousand, four hundred thirty-one".