1453478668 has 6 divisors (see below), whose sum is σ = 2543587676. Its totient is φ = 726739332.

The previous prime is 1453478657. The next prime is 1453478683. The reversal of 1453478668 is 8668743541.

It is a super-2 number, since 2×1453478668² = 4225200476662108448, which contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 181684830 + ... + 181684837.

Almost surely, 2^1453478668 is an apocalyptic number.

It is an amenable number.

1453478668 is a deficient number, since it is larger than the sum of its proper divisors (1090109008).

1453478668 is a wasteful number, since it uses less digits than its factorization.

1453478668 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 363369671 (or 363369669 counting only the distinct ones).

The product of its digits is 3870720, while the sum is 52.

The square root of 1453478668 is about 38124.5153149519. The cubic root of 1453478668 is about 1132.7556074719.

The spelling of 1453478668 in words is "one billion, four hundred fifty-three million, four hundred seventy-eight thousand, six hundred sixty-eight".