1481769773 has 4 divisors (see below), whose sum is σ = 1616476128. Its totient is φ = 1347063420.

The previous prime is 1481769767. The next prime is 1481769797. The reversal of 1481769773 is 3779671841.

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 a cyclic number.

It is not a de Polignac number, because 1481769773 - 2²² = 1477575469 is a prime.

It is a super-3 number, since 3×1481769773³ (a number of 28 digits) contains 333 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1481769743) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 67353161 + ... + 67353182.

It is an arithmetic number, because the mean of its divisors is an integer number (404119032).

Almost surely, 2^1481769773 is an apocalyptic number.

It is an amenable number.

1481769773 is a deficient number, since it is larger than the sum of its proper divisors (134706355).

1481769773 is a wasteful number, since it uses less digits than its factorization.

1481769773 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 134706354.

The product of its digits is 1778112, while the sum is 53.

The square root of 1481769773 is about 38493.7627804817. The cubic root of 1481769773 is about 1140.0579053895.

The spelling of 1481769773 in words is "one billion, four hundred eighty-one million, seven hundred sixty-nine thousand, seven hundred seventy-three".