1428121213571 has 8 divisors (see below), whose sum is σ = 1604845243680. Its totient is φ = 1260949833792.

The previous prime is 1428121213567. The next prime is 1428121213583. The reversal of 1428121213571 is 1753121218241.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1428121213571 - 2² = 1428121213567 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1428121213501) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2388162266 + ... + 2388162863.

It is an arithmetic number, because the mean of its divisors is an integer number (200605655460).

Almost surely, 2^{1428121213571} is an apocalyptic number.

1428121213571 is a deficient number, since it is larger than the sum of its proper divisors (176724030109).

1428121213571 is a wasteful number, since it uses less digits than its factorization.

1428121213571 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4776325165.

The product of its digits is 26880, while the sum is 38.

The spelling of 1428121213571 in words is "one trillion, four hundred twenty-eight billion, one hundred twenty-one million, two hundred thirteen thousand, five hundred seventy-one".