61572502323 has 32 divisors (see below), whose sum is σ = 96069600000. Its totient is φ = 38867605056.

The previous prime is 61572502289. The next prime is 61572502349. The reversal of 61572502323 is 32320527516.

61572502323 is a `hidden beast` number, since 6 + 1 + 572 + 50 + 2 + 32 + 3 = 666.

It is not a de Polignac number, because 61572502323 - 2¹² = 61572498227 is a prime.

It is not an unprimeable number, because it can be changed into a prime (61572502363) 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 31 ways as a sum of consecutive naturals, for example, 984903 + ... + 1045551.

It is an arithmetic number, because the mean of its divisors is an integer number (3002175000).

Almost surely, 2^61572502323 is an apocalyptic number.

61572502323 is a deficient number, since it is larger than the sum of its proper divisors (34497097677).

61572502323 is a wasteful number, since it uses less digits than its factorization.

61572502323 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 62656 (or 62650 counting only the distinct ones).

The product of its (nonzero) digits is 75600, while the sum is 36.

The spelling of 61572502323 in words is "sixty-one billion, five hundred seventy-two million, five hundred two thousand, three hundred twenty-three".