61452523665730 has 8 divisors (see below), whose sum is σ = 110614542598332. Its totient is φ = 24581009466288.

The previous prime is 61452523665727. The next prime is 61452523665739. The reversal of 61452523665730 is 3756632525416.

It can be written as a sum of positive squares in 2 ways, for example, as 55234876688289 + 6217646977441 = 7432017^2 + 2493521^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (61452523665739) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3072626183277 + ... + 3072626183296.

Almost surely, 2^{61452523665730} is an apocalyptic number.

61452523665730 is a deficient number, since it is larger than the sum of its proper divisors (49162018932602).

61452523665730 is a wasteful number, since it uses less digits than its factorization.

61452523665730 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6145252366580.

The product of its (nonzero) digits is 27216000, while the sum is 55.

The spelling of 61452523665730 in words is "sixty-one trillion, four hundred fifty-two billion, five hundred twenty-three million, six hundred sixty-five thousand, seven hundred thirty".