61624221946693 has 4 divisors (see below), whose sum is σ = 70427682224800. Its totient is φ = 52820761668588.

The previous prime is 61624221946673. The next prime is 61624221946717. The reversal of 61624221946693 is 39664912242616.

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 61624221946693 - 2²⁹ = 61623685075781 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61624221946643) 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, 4401730139043 + ... + 4401730139056.

It is an arithmetic number, because the mean of its divisors is an integer number (17606920556200).

Almost surely, 2^{61624221946693} is an apocalyptic number.

It is an amenable number.

61624221946693 is a deficient number, since it is larger than the sum of its proper divisors (8803460278107).

61624221946693 is an equidigital number, since it uses as much as digits as its factorization.

61624221946693 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8803460278106.

The product of its digits is 40310784, while the sum is 61.

The spelling of 61624221946693 in words is "sixty-one trillion, six hundred twenty-four billion, two hundred twenty-one million, nine hundred forty-six thousand, six hundred ninety-three".