1427340255517 has 64 divisors (see below), whose sum is σ = 1812840652800. Its totient is φ = 1105500718080.

The previous prime is 1427340255511. The next prime is 1427340255527. The reversal of 1427340255517 is 7155520437241.

It is not a de Polignac number, because 1427340255517 - 2⁷ = 1427340255389 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1427340255511) 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 63 ways as a sum of consecutive naturals, for example, 81465084 + ... + 81482602.

It is an arithmetic number, because the mean of its divisors is an integer number (28325635200).

Almost surely, 2^{1427340255517} is an apocalyptic number.

1427340255517 is a gapful number since it is divisible by the number (17) formed by its first and last digit.

It is an amenable number.

1427340255517 is a deficient number, since it is larger than the sum of its proper divisors (385500397283).

1427340255517 is a wasteful number, since it uses less digits than its factorization.

1427340255517 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18586.

The product of its (nonzero) digits is 1176000, while the sum is 46.

The spelling of 1427340255517 in words is "one trillion, four hundred twenty-seven billion, three hundred forty million, two hundred fifty-five thousand, five hundred seventeen".