61275824687 has 16 divisors (see below), whose sum is σ = 76402393344. Its totient is φ = 47743296000.

The previous prime is 61275824681. The next prime is 61275824699. The reversal of 61275824687 is 78642857216.

It is a cyclic number.

It is not a de Polignac number, because 61275824687 - 2⁴ = 61275824671 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 (61275824681) 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 15 ways as a sum of consecutive naturals, for example, 1119887 + ... + 1173327.

It is an arithmetic number, because the mean of its divisors is an integer number (4775149584).

Almost surely, 2^61275824687 is an apocalyptic number.

61275824687 is a deficient number, since it is larger than the sum of its proper divisors (15126568657).

61275824687 is a wasteful number, since it uses less digits than its factorization.

61275824687 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 68350.

The product of its digits is 9031680, while the sum is 56.

The spelling of 61275824687 in words is "sixty-one billion, two hundred seventy-five million, eight hundred twenty-four thousand, six hundred eighty-seven".