61473444944 has 20 divisors (see below), whose sum is σ = 119904165300. Its totient is φ = 30530434560.

The previous prime is 61473444941. The next prime is 61473444947. The reversal of 61473444944 is 44944437416.

It is an interprime number because it is at equal distance from previous prime (61473444941) and next prime (61473444947).

It can be written as a sum of positive squares in 2 ways, for example, as 5522273344 + 55951171600 = 74312^2 + 236540^2 .

It is a junction number, because it is equal to n+sod(n) for n = 61473444892 and 61473444901.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61473444941) 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 3 ways as a sum of consecutive naturals, for example, 12890537 + ... + 12895304.

It is an arithmetic number, because the mean of its divisors is an integer number (5995208265).

Almost surely, 2^61473444944 is an apocalyptic number.

It is an amenable number.

61473444944 is a deficient number, since it is larger than the sum of its proper divisors (58430720356).

61473444944 is a wasteful number, since it uses less digits than its factorization.

61473444944 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25785998 (or 25785992 counting only the distinct ones).

The product of its digits is 4644864, while the sum is 50.

The spelling of 61473444944 in words is "sixty-one billion, four hundred seventy-three million, four hundred forty-four thousand, nine hundred forty-four".