1427485661 has 8 divisors (see below), whose sum is σ = 1634399040. Its totient is φ = 1221319008.

The previous prime is 1427485559. The next prime is 1427485669. The reversal of 1427485661 is 1665847241.

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

It is not a de Polignac number, because 1427485661 - 2¹⁰ = 1427484637 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1427485669) 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, 182576 + ... + 190233.

It is an arithmetic number, because the mean of its divisors is an integer number (204299880).

Almost surely, 2^1427485661 is an apocalyptic number.

It is an amenable number.

1427485661 is a deficient number, since it is larger than the sum of its proper divisors (206913379).

1427485661 is an equidigital number, since it uses as much as digits as its factorization.

1427485661 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 373363.

The product of its digits is 322560, while the sum is 44.

The square root of 1427485661 is about 37782.0812158356. The cubic root of 1427485661 is about 1125.9624779932.

The spelling of 1427485661 in words is "one billion, four hundred twenty-seven million, four hundred eighty-five thousand, six hundred sixty-one".