1427340255520 has 96 divisors (see below), whose sum is σ = 3433217825520. Its totient is φ = 560654991360.

The previous prime is 1427340255511. The next prime is 1427340255527. The reversal of 1427340255520 is 255520437241.

It can be written as a sum of positive squares in 8 ways, for example, as 1168621536784 + 258718718736 = 1081028^2 + 508644^2 .

It is a Harshad number since it is a multiple of its sum of digits (40).

It is not an unprimeable number, because it can be changed into a prime (1427340255527) 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, 2407900 + ... + 2941540.

Almost surely, 2^{1427340255520} is an apocalyptic number.

1427340255520 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1427340255520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1716608912760).

1427340255520 is an abundant number, since it is smaller than the sum of its proper divisors (2005877570000).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1427340255520 is a wasteful number, since it uses less digits than its factorization.

1427340255520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 533958 (or 533950 counting only the distinct ones).

The product of its (nonzero) digits is 336000, while the sum is 40.

The spelling of 1427340255520 in words is "one trillion, four hundred twenty-seven billion, three hundred forty million, two hundred fifty-five thousand, five hundred twenty".