61363763772727 has 16 divisors (see below), whose sum is σ = 68988321597888. Its totient is φ = 54156319176960.

The previous prime is 61363763772637. The next prime is 61363763772733. The reversal of 61363763772727 is 72727736736316.

It is not a de Polignac number, because 61363763772727 - 2¹⁵ = 61363763739959 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 (61363763778727) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 45538078 + ... + 46866235.

It is an arithmetic number, because the mean of its divisors is an integer number (4311770099868).

Almost surely, 2^{61363763772727} is an apocalyptic number.

61363763772727 is a deficient number, since it is larger than the sum of its proper divisors (7624557825161).

61363763772727 is a wasteful number, since it uses less digits than its factorization.

61363763772727 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 92406570.

The product of its digits is 392073696, while the sum is 67.

The spelling of 61363763772727 in words is "sixty-one trillion, three hundred sixty-three billion, seven hundred sixty-three million, seven hundred seventy-two thousand, seven hundred twenty-seven".