1427197571628 has 24 divisors (see below), whose sum is σ = 3347031874032. Its totient is φ = 473317637184.

The previous prime is 1427197571599. The next prime is 1427197571669. The reversal of 1427197571628 is 8261757917241.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 301858375 + ... + 301863102.

It is an arithmetic number, because the mean of its divisors is an integer number (139459661418).

Almost surely, 2^{1427197571628} is an apocalyptic number.

It is an amenable number.

1427197571628 is an abundant number, since it is smaller than the sum of its proper divisors (1919834302404).

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

1427197571628 is a wasteful number, since it uses less digits than its factorization.

1427197571628 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 603721681 (or 603721679 counting only the distinct ones).

The product of its digits is 11854080, while the sum is 60.

The spelling of 1427197571628 in words is "one trillion, four hundred twenty-seven billion, one hundred ninety-seven million, five hundred seventy-one thousand, six hundred twenty-eight".