68696918 has 4 divisors (see below), whose sum is σ = 103045380. Its totient is φ = 34348458.

The previous prime is 68696917. The next prime is 68696933. The reversal of 68696918 is 81969686.

It is a semiprime because it is the product of two primes.

It is a self number, because there is not a number n which added to its sum of digits gives 68696918.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68696917) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 17174228 + ... + 17174231.

It is an arithmetic number, because the mean of its divisors is an integer number (25761345).

Almost surely, 2^68696918 is an apocalyptic number.

68696918 is a deficient number, since it is larger than the sum of its proper divisors (34348462).

68696918 is a wasteful number, since it uses less digits than its factorization.

68696918 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34348461.

The product of its digits is 1119744, while the sum is 53.

The square root of 68696918 is about 8288.3603927435. The cubic root of 68696918 is about 409.5551749132. Note that the first 3 decimals are identical.

The spelling of 68696918 in words is "sixty-eight million, six hundred ninety-six thousand, nine hundred eighteen".