1398830310828 has 18 divisors (see below), whose sum is σ = 3535932174684. Its totient is φ = 466276770264.

The previous prime is 1398830310817. The next prime is 1398830310859. The reversal of 1398830310828 is 8280130388931.

1398830310828 is a `hidden beast` number, since 139 + 88 + 303 + 108 + 28 = 666.

It is a tau number, because it is divible by the number of its divisors (18).

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 19428198726 + ... + 19428198797.

Almost surely, 2^{1398830310828} is an apocalyptic number.

1398830310828 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

1398830310828 is an abundant number, since it is smaller than the sum of its proper divisors (2137101863856).

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

1398830310828 is a wasteful number, since it uses less digits than its factorization.

1398830310828 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38856397533 (or 38856397528 counting only the distinct ones).

The product of its (nonzero) digits is 1990656, while the sum is 54.

The spelling of 1398830310828 in words is "one trillion, three hundred ninety-eight billion, eight hundred thirty million, three hundred ten thousand, eight hundred twenty-eight".