74522570452 has 18 divisors (see below), whose sum is σ = 143348168474. Its totient is φ = 33873895440.

The previous prime is 74522570413. The next prime is 74522570453. The reversal of 74522570452 is 25407522547.

It can be written as a sum of positive squares in only one way, i.e., 67243750596 + 7278819856 = 259314^2 + 85316^2 .

It is a super-2 number, since 2×74522570452² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 74522570399 and 74522570408.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (74522570453) 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, 76985643 + ... + 76986610.

Almost surely, 2^74522570452 is an apocalyptic number.

It is an amenable number.

74522570452 is a deficient number, since it is larger than the sum of its proper divisors (68825598022).

74522570452 is a wasteful number, since it uses less digits than its factorization.

74522570452 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 153972279 (or 153972266 counting only the distinct ones).

The product of its (nonzero) digits is 784000, while the sum is 43.

The spelling of 74522570452 in words is "seventy-four billion, five hundred twenty-two million, five hundred seventy thousand, four hundred fifty-two".