61222644742 has 32 divisors (see below), whose sum is σ = 106066920960. Its totient is φ = 25959985920.

The previous prime is 61222644733. The next prime is 61222644779. The reversal of 61222644742 is 24744622216.

It is a junction number, because it is equal to n+sod(n) for n = 61222644695 and 61222644704.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8061367 + ... + 8068957.

It is an arithmetic number, because the mean of its divisors is an integer number (3314591280).

Almost surely, 2^61222644742 is an apocalyptic number.

61222644742 is a deficient number, since it is larger than the sum of its proper divisors (44844276218).

61222644742 is a wasteful number, since it uses less digits than its factorization.

61222644742 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13636.

The product of its digits is 258048, while the sum is 40.

The spelling of 61222644742 in words is "sixty-one billion, two hundred twenty-two million, six hundred forty-four thousand, seven hundred forty-two".