1428490163616 has 96 divisors (see below), whose sum is σ = 3880641441600. Its totient is φ = 459560048640.

The previous prime is 1428490163591. The next prime is 1428490163647. The reversal of 1428490163616 is 6163610948241.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (96).

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, 6944940 + ... + 7147668.

It is an arithmetic number, because the mean of its divisors is an integer number (40423348350).

Almost surely, 2^{1428490163616} is an apocalyptic number.

1428490163616 is a gapful number since it is divisible by the number (16) 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 1428490163616, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1940320720800).

1428490163616 is an abundant number, since it is smaller than the sum of its proper divisors (2452151277984).

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

1428490163616 is a wasteful number, since it uses less digits than its factorization.

1428490163616 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 205302 (or 205294 counting only the distinct ones).

The product of its (nonzero) digits is 1492992, while the sum is 51.

The spelling of 1428490163616 in words is "one trillion, four hundred twenty-eight billion, four hundred ninety million, one hundred sixty-three thousand, six hundred sixteen".