61727365607 has 4 divisors (see below), whose sum is σ = 61753402296. Its totient is φ = 61701328920.

The previous prime is 61727365591. The next prime is 61727365631. The reversal of 61727365607 is 70656372716.

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 61727365607 - 2⁴ = 61727365591 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 (61727365657) 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, 13014788 + ... + 13019529.

It is an arithmetic number, because the mean of its divisors is an integer number (15438350574).

Almost surely, 2^61727365607 is an apocalyptic number.

61727365607 is a deficient number, since it is larger than the sum of its proper divisors (26036689).

61727365607 is a wasteful number, since it uses less digits than its factorization.

61727365607 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26036688.

The product of its (nonzero) digits is 2222640, while the sum is 50.

The spelling of 61727365607 in words is "sixty-one billion, seven hundred twenty-seven million, three hundred sixty-five thousand, six hundred seven".