61247511063 has 12 divisors (see below), whose sum is σ = 88554282960. Its totient is φ = 40792140576.

The previous prime is 61247511023. The next prime is 61247511067. The reversal of 61247511063 is 36011574216.

61247511063 is a `hidden beast` number, since 6 + 12 + 475 + 110 + 63 = 666.

It is not a de Polignac number, because 61247511063 - 2¹⁰ = 61247510039 is a prime.

It is a super-2 number, since 2×61247511063² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61247511067) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3284643 + ... + 3303236.

It is an arithmetic number, because the mean of its divisors is an integer number (7379523580).

Almost surely, 2^61247511063 is an apocalyptic number.

61247511063 is a deficient number, since it is larger than the sum of its proper divisors (27306771897).

61247511063 is a wasteful number, since it uses less digits than its factorization.

61247511063 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6588918 (or 6588915 counting only the distinct ones).

The product of its (nonzero) digits is 30240, while the sum is 36.

The spelling of 61247511063 in words is "sixty-one billion, two hundred forty-seven million, five hundred eleven thousand, sixty-three".