61968810 has 16 divisors (see below), whose sum is σ = 148725216. Its totient is φ = 16525008.

The previous prime is 61968787. The next prime is 61968811. The reversal of 61968810 is 1886916.

61968810 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×61968810² = 7680266825632200, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (61968811) 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 7 ways as a sum of consecutive naturals, for example, 1032784 + ... + 1032843.

It is an arithmetic number, because the mean of its divisors is an integer number (9295326).

Almost surely, 2^61968810 is an apocalyptic number.

61968810 is an abundant number, since it is smaller than the sum of its proper divisors (86756406).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

61968810 is a wasteful number, since it uses less digits than its factorization.

61968810 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2065637.

The product of its (nonzero) digits is 20736, while the sum is 39.

The square root of 61968810 is about 7872.0270578803. The cubic root of 61968810 is about 395.7227806747.

The spelling of 61968810 in words is "sixty-one million, nine hundred sixty-eight thousand, eight hundred ten".