61452575419 has 4 divisors (see below), whose sum is σ = 61459858944. Its totient is φ = 61445291896.

The previous prime is 61452575407. The next prime is 61452575453. The reversal of 61452575419 is 91457525416.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 61452575419 - 2²¹ = 61450478267 is a prime.

It is a super-2 number, since 2×61452575419² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (61452575479) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3629092 + ... + 3645985.

It is an arithmetic number, because the mean of its divisors is an integer number (15364964736).

Almost surely, 2^61452575419 is an apocalyptic number.

61452575419 is a deficient number, since it is larger than the sum of its proper divisors (7283525).

61452575419 is an equidigital number, since it uses as much as digits as its factorization.

61452575419 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7283524.

The product of its digits is 1512000, while the sum is 49.

The spelling of 61452575419 in words is "sixty-one billion, four hundred fifty-two million, five hundred seventy-five thousand, four hundred nineteen".