61724211404653 has 4 divisors (see below), whose sum is σ = 70541955891040. Its totient is φ = 52906466918268.

The previous prime is 61724211404641. The next prime is 61724211404657. The reversal of 61724211404653 is 35640411242716.

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 61724211404653 - 2⁵ = 61724211404621 is a prime.

It is a super-3 number, since 3×61724211404653³ (a number of 42 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61724211404657) 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, 4408872243183 + ... + 4408872243196.

It is an arithmetic number, because the mean of its divisors is an integer number (17635488972760).

Almost surely, 2^{61724211404653} is an apocalyptic number.

It is an amenable number.

61724211404653 is a deficient number, since it is larger than the sum of its proper divisors (8817744486387).

61724211404653 is an equidigital number, since it uses as much as digits as its factorization.

61724211404653 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8817744486386.

The product of its (nonzero) digits is 967680, while the sum is 46.

The spelling of 61724211404653 in words is "sixty-one trillion, seven hundred twenty-four billion, two hundred eleven million, four hundred four thousand, six hundred fifty-three".