1428548879890 has 48 divisors (see below), whose sum is σ = 2858159205720. Its totient is φ = 513635513600.

The previous prime is 1428548879843. The next prime is 1428548879909. The reversal of 1428548879890 is 989788458241.

It can be written as a sum of positive squares in 4 ways, for example, as 660466661481 + 768082218409 = 812691^2 + 876403^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 6525001 + ... + 6740380.

Almost surely, 2^{1428548879890} is an apocalyptic number.

1428548879890 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1428548879890 is an abundant number, since it is smaller than the sum of its proper divisors (1429610325830).

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

1428548879890 is a wasteful number, since it uses less digits than its factorization.

1428548879890 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13265499 (or 13265488 counting only the distinct ones).

The product of its (nonzero) digits is 371589120, while the sum is 73.

The spelling of 1428548879890 in words is "one trillion, four hundred twenty-eight billion, five hundred forty-eight million, eight hundred seventy-nine thousand, eight hundred ninety".