61117228395 has 12 divisors (see below), whose sum is σ = 105936529296. Its totient is φ = 32595855120.

The previous prime is 61117228391. The next prime is 61117228429. The reversal of 61117228395 is 59382271116.

61117228395 is a `hidden beast` number, since 611 + 1 + 7 + 2 + 28 + 3 + 9 + 5 = 666.

It is not a de Polignac number, because 61117228395 - 2² = 61117228391 is a prime.

It is a Smith number, since the sum of its digits (45) coincides with the sum of the digits of its prime factors.

It is a Harshad number since it is a multiple of its sum of digits (45), and also a Moran number because the ratio is a prime number: 1358160631 = 61117228395 / (6 + 1 + 1 + 1 + 7 + 2 + 2 + 8 + 3 + 9 + 5).

It is a self number, because there is not a number n which added to its sum of digits gives 61117228395.

It is not an unprimeable number, because it can be changed into a prime (61117228391) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 679080271 + ... + 679080360.

It is an arithmetic number, because the mean of its divisors is an integer number (8828044108).

Almost surely, 2^61117228395 is an apocalyptic number.

61117228395 is a deficient number, since it is larger than the sum of its proper divisors (44819300901).

61117228395 is a wasteful number, since it uses less digits than its factorization.

61117228395 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1358160642 (or 1358160639 counting only the distinct ones).

The product of its digits is 181440, while the sum is 45.

The spelling of 61117228395 in words is "sixty-one billion, one hundred seventeen million, two hundred twenty-eight thousand, three hundred ninety-five".