1471948809 has 16 divisors (see below), whose sum is σ = 1989997632. Its totient is φ = 967644608.

The previous prime is 1471948729. The next prime is 1471948811. The reversal of 1471948809 is 9088491741.

It is a cyclic number.

It is not a de Polignac number, because 1471948809 - 2¹² = 1471944713 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1471948909) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 133387 + ... + 143999.

It is an arithmetic number, because the mean of its divisors is an integer number (124374852).

Almost surely, 2^1471948809 is an apocalyptic number.

It is an amenable number.

1471948809 is a deficient number, since it is larger than the sum of its proper divisors (518048823).

1471948809 is a wasteful number, since it uses less digits than its factorization.

1471948809 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11256.

The product of its (nonzero) digits is 580608, while the sum is 51.

The square root of 1471948809 is about 38365.9850518659. The cubic root of 1471948809 is about 1137.5336051578.

The spelling of 1471948809 in words is "one billion, four hundred seventy-one million, nine hundred forty-eight thousand, eight hundred nine".