3564749523 has 6 divisors (see below), whose sum is σ = 4753137252. Its totient is φ = 2376430740.

The previous prime is 3564749501. The next prime is 3564749561. The reversal of 3564749523 is 3259474653.

It is not a de Polignac number, because 3564749523 - 2⁵ = 3564749491 is a prime.

It is not an unprimeable number, because it can be changed into a prime (3564749623) by changing a digit.

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 in 5 ways as a sum of consecutive naturals, for example, 86178 + ... + 120648.

It is an arithmetic number, because the mean of its divisors is an integer number (792189542).

Almost surely, 2^3564749523 is an apocalyptic number.

3564749523 is a deficient number, since it is larger than the sum of its proper divisors (1188387729).

3564749523 is an frugal number, since it uses more digits than its factorization.

3564749523 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 68945 (or 34474 counting only the distinct ones).

The product of its digits is 2721600, while the sum is 48.

The square root of 3564749523 is about 59705.5233877068. The cubic root of 3564749523 is about 1527.6000826239.

Multiplying 3564749523 by its sum of digits (48), we get a square (171107977104 = 413652²).

The spelling of 3564749523 in words is "three billion, five hundred sixty-four million, seven hundred forty-nine thousand, five hundred twenty-three".