61123636522 has 32 divisors (see below), whose sum is σ = 104335418880. Its totient is φ = 26642753280.

The previous prime is 61123636507. The next prime is 61123636529. The reversal of 61123636522 is 22563632116.

It is not an unprimeable number, because it can be changed into a prime (61123636529) 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, 599679 + ... + 694162.

It is an arithmetic number, because the mean of its divisors is an integer number (3260481840).

Almost surely, 2^61123636522 is an apocalyptic number.

61123636522 is a deficient number, since it is larger than the sum of its proper divisors (43211782358).

61123636522 is a wasteful number, since it uses less digits than its factorization.

61123636522 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1293958.

The product of its digits is 77760, while the sum is 37.

The spelling of 61123636522 in words is "sixty-one billion, one hundred twenty-three million, six hundred thirty-six thousand, five hundred twenty-two".