1481666747 has 16 divisors (see below), whose sum is σ = 1636588800. Its totient is φ = 1330220640.

The previous prime is 1481666741. The next prime is 1481666761. The reversal of 1481666747 is 7476661841.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1481666747 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1481666695 and 1481666704.

It is not an unprimeable number, because it can be changed into a prime (1481666741) 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, 298754 + ... + 303672.

It is an arithmetic number, because the mean of its divisors is an integer number (102286800).

Almost surely, 2^1481666747 is an apocalyptic number.

1481666747 is a deficient number, since it is larger than the sum of its proper divisors (154922053).

1481666747 is a wasteful number, since it uses less digits than its factorization.

1481666747 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5266.

The product of its digits is 1354752, while the sum is 50.

The square root of 1481666747 is about 38492.4245404209. The cubic root of 1481666747 is about 1140.0314824075.

The spelling of 1481666747 in words is "one billion, four hundred eighty-one million, six hundred sixty-six thousand, seven hundred forty-seven".