61744791622 has 24 divisors (see below), whose sum is σ = 98433864360. Its totient is φ = 29042158080.

The previous prime is 61744791593. The next prime is 61744791623. The reversal of 61744791622 is 22619744716.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61744791623) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1206654 + ... + 1256782.

It is an arithmetic number, because the mean of its divisors is an integer number (4101411015).

Almost surely, 2^61744791622 is an apocalyptic number.

61744791622 is a deficient number, since it is larger than the sum of its proper divisors (36689072738).

61744791622 is a wasteful number, since it uses less digits than its factorization.

61744791622 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52296 (or 52279 counting only the distinct ones).

The product of its digits is 1016064, while the sum is 49.

The spelling of 61744791622 in words is "sixty-one billion, seven hundred forty-four million, seven hundred ninety-one thousand, six hundred twenty-two".