1472667681 has 4 divisors (see below), whose sum is σ = 1963556912. Its totient is φ = 981778452.

The previous prime is 1472667649. The next prime is 1472667689. The reversal of 1472667681 is 1867662741.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 1472667681 - 2⁵ = 1472667649 is a prime.

It is a super-2 number, since 2×1472667681² = 4337500197323835522, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 1472667681.

It is not an unprimeable number, because it can be changed into a prime (1472667689) by changing a digit.

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 in 3 ways as a sum of consecutive naturals, for example, 245444611 + ... + 245444616.

It is an arithmetic number, because the mean of its divisors is an integer number (490889228).

Almost surely, 2^1472667681 is an apocalyptic number.

It is an amenable number.

1472667681 is a deficient number, since it is larger than the sum of its proper divisors (490889231).

1472667681 is an equidigital number, since it uses as much as digits as its factorization.

1472667681 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 490889230.

The product of its digits is 677376, while the sum is 48.

The square root of 1472667681 is about 38375.3525195535. The cubic root of 1472667681 is about 1137.7187583293.

The spelling of 1472667681 in words is "one billion, four hundred seventy-two million, six hundred sixty-seven thousand, six hundred eighty-one".