68961910 has 16 divisors (see below), whose sum is σ = 124416000. Its totient is φ = 27521536.

The previous prime is 68961863. The next prime is 68961923. The reversal of 68961910 is 1916986.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3190 + ... + 12169.

It is an arithmetic number, because the mean of its divisors is an integer number (7776000).

Almost surely, 2^68961910 is an apocalyptic number.

68961910 is a deficient number, since it is larger than the sum of its proper divisors (55454090).

68961910 is a wasteful number, since it uses less digits than its factorization.

68961910 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15815.

The product of its (nonzero) digits is 23328, while the sum is 40.

The square root of 68961910 is about 8304.3307978428. The cubic root of 68961910 is about 410.0811063023.

The spelling of 68961910 in words is "sixty-eight million, nine hundred sixty-one thousand, nine hundred ten".