74598521344 has 20 divisors (see below), whose sum is σ = 149051343474. Its totient is φ = 37299260416.

The previous prime is 74598521317. The next prime is 74598521359. The reversal of 74598521344 is 44312589547.

It can be written as a sum of positive squares in only one way, i.e., 73055602944 + 1542918400 = 270288^2 + 39280^2 .

It is a super-2 number, since 2×74598521344² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 74598521291 and 74598521300.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 72849607 + ... + 72850630.

Almost surely, 2^74598521344 is an apocalyptic number.

It is an amenable number.

74598521344 is a deficient number, since it is larger than the sum of its proper divisors (74452822130).

74598521344 is an equidigital number, since it uses as much as digits as its factorization.

74598521344 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 145700255 (or 145700239 counting only the distinct ones).

The product of its digits is 4838400, while the sum is 52.

The spelling of 74598521344 in words is "seventy-four billion, five hundred ninety-eight million, five hundred twenty-one thousand, three hundred forty-four".