1980467533 has 4 divisors (see below), whose sum is σ = 2160510048. Its totient is φ = 1800425020.

The previous prime is 1980467521. The next prime is 1980467537. The reversal of 1980467533 is 3357640891.

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 1980467533 - 2⁵ = 1980467501 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1980467537) 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, 90021241 + ... + 90021262.

It is an arithmetic number, because the mean of its divisors is an integer number (540127512).

Almost surely, 2^1980467533 is an apocalyptic number.

It is an amenable number.

1980467533 is a deficient number, since it is larger than the sum of its proper divisors (180042515).

1980467533 is a wasteful number, since it uses less digits than its factorization.

1980467533 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 180042514.

The product of its (nonzero) digits is 544320, while the sum is 46.

The square root of 1980467533 is about 44502.4441238905. Note that the first 3 decimals coincide. The cubic root of 1980467533 is about 1255.8060636520.

The spelling of 1980467533 in words is "one billion, nine hundred eighty million, four hundred sixty-seven thousand, five hundred thirty-three".