61764475930 has 16 divisors (see below), whose sum is σ = 111402493344. Its totient is φ = 24655471120.

The previous prime is 61764475909. The next prime is 61764475937. The reversal of 61764475930 is 3957446716.

It is not an unprimeable number, because it can be changed into a prime (61764475937) 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 7 ways as a sum of consecutive naturals, for example, 6284752 + ... + 6294571.

It is an arithmetic number, because the mean of its divisors is an integer number (6962655834).

Almost surely, 2^61764475930 is an apocalyptic number.

61764475930 is a deficient number, since it is larger than the sum of its proper divisors (49638017414).

61764475930 is a wasteful number, since it uses less digits than its factorization.

61764475930 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12579821.

The product of its (nonzero) digits is 3810240, while the sum is 52.

The spelling of 61764475930 in words is "sixty-one billion, seven hundred sixty-four million, four hundred seventy-five thousand, nine hundred thirty".