61077218502063 has 16 divisors (see below), whose sum is σ = 87127697379200. Its totient is φ = 37942706918880.

The previous prime is 61077218502049. The next prime is 61077218502089. The reversal of 61077218502063 is 36020581277016.

It is a de Polignac number, because none of the positive numbers 2^k-61077218502063 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 (61077218502043) 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, 8783030533 + ... + 8783037486.

It is an arithmetic number, because the mean of its divisors is an integer number (5445481086200).

Almost surely, 2^{61077218502063} is an apocalyptic number.

61077218502063 is a deficient number, since it is larger than the sum of its proper divisors (26050478877137).

61077218502063 is a wasteful number, since it uses less digits than its factorization.

61077218502063 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17566068102.

The product of its (nonzero) digits is 846720, while the sum is 48.

Adding to 61077218502063 its reverse (36020581277016), we get a palindrome (97097799779079).

The spelling of 61077218502063 in words is "sixty-one trillion, seventy-seven billion, two hundred eighteen million, five hundred two thousand, sixty-three".