183428747378 has 4 divisors (see below), whose sum is σ = 275143121070. Its totient is φ = 91714373688.

The previous prime is 183428747357. The next prime is 183428747387. The reversal of 183428747378 is 873747824381.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 125774494609 + 57654252769 = 354647^2 + 240113^2 .

It is a super-2 number, since 2×183428747378² (a number of 23 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 183428747378.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 45857186843 + ... + 45857186846.

Almost surely, 2^183428747378 is an apocalyptic number.

183428747378 is a deficient number, since it is larger than the sum of its proper divisors (91714373692).

183428747378 is an equidigital number, since it uses as much as digits as its factorization.

183428747378 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 91714373691.

The product of its digits is 50577408, while the sum is 62.

The spelling of 183428747378 in words is "one hundred eighty-three billion, four hundred twenty-eight million, seven hundred forty-seven thousand, three hundred seventy-eight".