283378731481 has 4 divisors (see below), whose sum is σ = 283454525200. Its totient is φ = 283302937764.

The previous prime is 283378731479. The next prime is 283378731487. The reversal of 283378731481 is 184137873382.

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 283378731481 - 2¹ = 283378731479 is a prime.

It is a super-2 number, since 2×283378731481² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (283378731487) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 37891251 + ... + 37898728.

It is an arithmetic number, because the mean of its divisors is an integer number (70863631300).

Almost surely, 2^283378731481 is an apocalyptic number.

It is an amenable number.

283378731481 is a deficient number, since it is larger than the sum of its proper divisors (75793719).

283378731481 is an equidigital number, since it uses as much as digits as its factorization.

283378731481 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 75793718.

The product of its digits is 5419008, while the sum is 55.

The spelling of 283378731481 in words is "two hundred eighty-three billion, three hundred seventy-eight million, seven hundred thirty-one thousand, four hundred eighty-one".