61934616844 has 48 divisors (see below), whose sum is σ = 119115763200. Its totient is φ = 28046532096.

The previous prime is 61934616833. The next prime is 61934616899. The reversal of 61934616844 is 44861643916.

It is a super-2 number, since 2×61934616844² (a number of 22 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 61934616791 and 61934616800.

It is an unprimeable number.

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, 3555484 + ... + 3572860.

It is an arithmetic number, because the mean of its divisors is an integer number (2481578400).

Almost surely, 2^61934616844 is an apocalyptic number.

It is an amenable number.

61934616844 is a deficient number, since it is larger than the sum of its proper divisors (57181146356).

61934616844 is a wasteful number, since it uses less digits than its factorization.

61934616844 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19462 (or 19460 counting only the distinct ones).

The product of its digits is 2985984, while the sum is 52.

The spelling of 61934616844 in words is "sixty-one billion, nine hundred thirty-four million, six hundred sixteen thousand, eight hundred forty-four".