61723395679 has 8 divisors (see below), whose sum is σ = 67341641472. Its totient is φ = 56106321240.

The previous prime is 61723395667. The next prime is 61723395703. The reversal of 61723395679 is 97659332716.

61723395679 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is not a de Polignac number, because 61723395679 - 2⁵ = 61723395647 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 (61723395619) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 180789 + ... + 395134.

It is an arithmetic number, because the mean of its divisors is an integer number (8417705184).

Almost surely, 2^61723395679 is an apocalyptic number.

61723395679 is a deficient number, since it is larger than the sum of its proper divisors (5618245793).

61723395679 is a wasteful number, since it uses less digits than its factorization.

61723395679 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 585677.

The product of its digits is 12859560, while the sum is 58.

The spelling of 61723395679 in words is "sixty-one billion, seven hundred twenty-three million, three hundred ninety-five thousand, six hundred seventy-nine".