1678047055 has 8 divisors (see below), whose sum is σ = 2013975072. Its totient is φ = 1342225248.

The previous prime is 1678047053. The next prime is 1678047061. The reversal of 1678047055 is 5507408761.

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 1678047055 - 2¹ = 1678047053 is a prime.

It is a super-3 number, since 3×1678047055³ (a number of 29 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1678047053) 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, 13782 + ... + 59548.

It is an arithmetic number, because the mean of its divisors is an integer number (251746884).

Almost surely, 2^1678047055 is an apocalyptic number.

1678047055 is a deficient number, since it is larger than the sum of its proper divisors (335928017).

1678047055 is an equidigital number, since it uses as much as digits as its factorization.

1678047055 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 53105.

The product of its (nonzero) digits is 235200, while the sum is 43.

The square root of 1678047055 is about 40963.9726467051. The cubic root of 1678047055 is about 1188.3235709654.

The spelling of 1678047055 in words is "one billion, six hundred seventy-eight million, forty-seven thousand, fifty-five".