61573004353 has 4 divisors (see below), whose sum is σ = 70369147840. Its totient is φ = 52776860868.

The previous prime is 61573004333. The next prime is 61573004371. The reversal of 61573004353 is 35340037516.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 61573004353 - 2²⁵ = 61539449921 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (61573004333) 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, 4398071733 + ... + 4398071746.

It is an arithmetic number, because the mean of its divisors is an integer number (17592286960).

Almost surely, 2^61573004353 is an apocalyptic number.

It is an amenable number.

61573004353 is a deficient number, since it is larger than the sum of its proper divisors (8796143487).

61573004353 is an equidigital number, since it uses as much as digits as its factorization.

61573004353 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8796143486.

The product of its (nonzero) digits is 113400, while the sum is 37.

The spelling of 61573004353 in words is "sixty-one billion, five hundred seventy-three million, four thousand, three hundred fifty-three".