1427200666782 has 32 divisors (see below), whose sum is σ = 3157750013184. Its totient is φ = 426393710400.

The previous prime is 1427200666781. The next prime is 1427200666807. The reversal of 1427200666782 is 2876660027241.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1427200666781) 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, 152278783 + ... + 152288154.

It is an arithmetic number, because the mean of its divisors is an integer number (98679687912).

Almost surely, 2^{1427200666782} is an apocalyptic number.

1427200666782 is an abundant number, since it is smaller than the sum of its proper divisors (1730549346402).

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

1427200666782 is a wasteful number, since it uses less digits than its factorization.

1427200666782 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 304567024.

The product of its (nonzero) digits is 2709504, while the sum is 51.

The spelling of 1427200666782 in words is "one trillion, four hundred twenty-seven billion, two hundred million, six hundred sixty-six thousand, seven hundred eighty-two".