27785455413 has 8 divisors (see below), whose sum is σ = 37060279776. Its totient is φ = 18517134000.

The previous prime is 27785455393. The next prime is 27785455427. The reversal of 27785455413 is 31455458772.

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

It is not a de Polignac number, because 27785455413 - 2⁵ = 27785455381 is a prime.

It is a super-2 number, since 2×27785455413² (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 (27785451413) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1615758 + ... + 1632863.

It is an arithmetic number, because the mean of its divisors is an integer number (4632534972).

Almost surely, 2^27785455413 is an apocalyptic number.

It is an amenable number.

27785455413 is a deficient number, since it is larger than the sum of its proper divisors (9274824363).

27785455413 is a wasteful number, since it uses less digits than its factorization.

27785455413 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3251475.

The product of its digits is 4704000, while the sum is 51.

The spelling of 27785455413 in words is "twenty-seven billion, seven hundred eighty-five million, four hundred fifty-five thousand, four hundred thirteen".