427709368555 has 16 divisors (see below), whose sum is σ = 605494554624. Its totient is φ = 283825571040.

The previous prime is 427709368553. The next prime is 427709368561. The reversal of 427709368555 is 555863907724.

It is a happy number.

It is not a de Polignac number, because 427709368555 - 2¹ = 427709368553 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 427709368493 and 427709368502.

It is not an unprimeable number, because it can be changed into a prime (427709368553) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 197100007 + ... + 197102176.

It is an arithmetic number, because the mean of its divisors is an integer number (37843409664).

Almost surely, 2^427709368555 is an apocalyptic number.

427709368555 is a deficient number, since it is larger than the sum of its proper divisors (177785186069).

427709368555 is a wasteful number, since it uses less digits than its factorization.

427709368555 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 394202226.

The product of its (nonzero) digits is 63504000, while the sum is 61.

The spelling of 427709368555 in words is "four hundred twenty-seven billion, seven hundred nine million, three hundred sixty-eight thousand, five hundred fifty-five".