1366386031428 has 96 divisors (see below), whose sum is σ = 3502466085888. Its totient is φ = 411157564800.

The previous prime is 1366386031403. The next prime is 1366386031433. The reversal of 1366386031428 is 8241306836631.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 21946783 + ... + 22008953.

It is an arithmetic number, because the mean of its divisors is an integer number (36484021728).

Almost surely, 2^{1366386031428} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1366386031428, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1751233042944).

1366386031428 is an abundant number, since it is smaller than the sum of its proper divisors (2136080054460).

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

1366386031428 is a wasteful number, since it uses less digits than its factorization.

1366386031428 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 63353 (or 63351 counting only the distinct ones).

The product of its (nonzero) digits is 2985984, while the sum is 51.

The spelling of 1366386031428 in words is "one trillion, three hundred sixty-six billion, three hundred eighty-six million, thirty-one thousand, four hundred twenty-eight".