1426427216240 has 80 divisors (see below), whose sum is σ = 3572360916768. Its totient is φ = 526561870848.

The previous prime is 1426427216183. The next prime is 1426427216251. The reversal of 1426427216240 is 426127246241.

It is a tau number, because it is divible by the number of its divisors (80).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4520087 + ... + 4825353.

Almost surely, 2^{1426427216240} is an apocalyptic number.

1426427216240 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1426427216240 is an abundant number, since it is smaller than the sum of its proper divisors (2145933700528).

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

1426427216240 is a wasteful number, since it uses less digits than its factorization.

1426427216240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 309786 (or 309780 counting only the distinct ones).

The product of its (nonzero) digits is 258048, while the sum is 41.

The spelling of 1426427216240 in words is "one trillion, four hundred twenty-six billion, four hundred twenty-seven million, two hundred sixteen thousand, two hundred forty".