39749522468 has 48 divisors (see below), whose sum is σ = 75532356144. Its totient is φ = 18229493760.

The previous prime is 39749522443. The next prime is 39749522471. The reversal of 39749522468 is 86422594793.

It can be written as a sum of positive squares in 8 ways, for example, as 530473024 + 39219049444 = 23032^2 + 198038^2 .

It is a super-2 number, since 2×39749522468² (a number of 22 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2716580 + ... + 2731172.

It is an arithmetic number, because the mean of its divisors is an integer number (1573590753).

Almost surely, 2^39749522468 is an apocalyptic number.

It is an amenable number.

39749522468 is a deficient number, since it is larger than the sum of its proper divisors (35782833676).

39749522468 is a wasteful number, since it uses less digits than its factorization.

39749522468 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15632 (or 15630 counting only the distinct ones).

The product of its digits is 26127360, while the sum is 59.

The spelling of 39749522468 in words is "thirty-nine billion, seven hundred forty-nine million, five hundred twenty-two thousand, four hundred sixty-eight".