1428818157288 has 24 divisors (see below), whose sum is σ = 3869715842850. Its totient is φ = 476272719072.

The previous prime is 1428818157287. The next prime is 1428818157359. The reversal of 1428818157288 is 8827518188241.

1428818157288 is a `hidden beast` number, since 1 + 42 + 8 + 8 + 18 + 1 + 572 + 8 + 8 = 666.

It can be written as a sum of positive squares in only one way, i.e., 1250107358724 + 178710798564 = 1118082^2 + 422742^2 .

It is a tau number, because it is divible by the number of its divisors (24).

It is not an unprimeable number, because it can be changed into a prime (1428818157287) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 9922348243 + ... + 9922348386.

Almost surely, 2^{1428818157288} is an apocalyptic number.

1428818157288 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

1428818157288 is an abundant number, since it is smaller than the sum of its proper divisors (2440897685562).

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

1428818157288 is a wasteful number, since it uses less digits than its factorization.

1428818157288 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19844696641 (or 19844696634 counting only the distinct ones).

The product of its digits is 18350080, while the sum is 63.

The spelling of 1428818157288 in words is "one trillion, four hundred twenty-eight billion, eight hundred eighteen million, one hundred fifty-seven thousand, two hundred eighty-eight".