61229694194 has 8 divisors (see below), whose sum is σ = 91912028508. Its totient is φ = 30592351360.

The previous prime is 61229694181. The next prime is 61229694199. The reversal of 61229694194 is 49149692216.

It can be written as a sum of positive squares in 2 ways, for example, as 54399498169 + 6830196025 = 233237^2 + 82645^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (61229694199) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11244467 + ... + 11249910.

Almost surely, 2^61229694194 is an apocalyptic number.

61229694194 is a deficient number, since it is larger than the sum of its proper divisors (30682334314).

61229694194 is a wasteful number, since it uses less digits than its factorization.

61229694194 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22495740.

The product of its digits is 1679616, while the sum is 53.

The spelling of 61229694194 in words is "sixty-one billion, two hundred twenty-nine million, six hundred ninety-four thousand, one hundred ninety-four".