7123782533 has 6 divisors (see below), whose sum is σ = 8286849126. Its totient is φ = 6106099272.

The previous prime is 7123782521. The next prime is 7123782539. The reversal of 7123782533 is 3352873217.

It can be written as a sum of positive squares in only one way, i.e., 7086609124 + 37173409 = 84182^2 + 6097^2 .

It is not a de Polignac number, because 7123782533 - 2¹⁶ = 7123716997 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 (7123782539) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 72691610 + ... + 72691707.

It is an arithmetic number, because the mean of its divisors is an integer number (1381141521).

Almost surely, 2^7123782533 is an apocalyptic number.

It is an amenable number.

7123782533 is a deficient number, since it is larger than the sum of its proper divisors (1163066593).

7123782533 is a wasteful number, since it uses less digits than its factorization.

7123782533 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 145383331 (or 145383324 counting only the distinct ones).

The product of its digits is 211680, while the sum is 41.

The square root of 7123782533 is about 84402.5031204644. The cubic root of 7123782533 is about 1924.1409588543.

The spelling of 7123782533 in words is "seven billion, one hundred twenty-three million, seven hundred eighty-two thousand, five hundred thirty-three".