68687150 has 36 divisors (see below), whose sum is σ = 146339592. Its totient is φ = 23496720.

The previous prime is 68687117. The next prime is 68687153. The reversal of 68687150 is 5178686.

It is a Smith number, since the sum of its digits (41) coincides with the sum of the digits of its prime factors.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 68687098 and 68687107.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68687153) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 154829 + ... + 155271.

Almost surely, 2^68687150 is an apocalyptic number.

68687150 is an abundant number, since it is smaller than the sum of its proper divisors (77652442).

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

68687150 is an equidigital number, since it uses as much as digits as its factorization.

68687150 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 905 (or 457 counting only the distinct ones).

The product of its (nonzero) digits is 80640, while the sum is 41.

The square root of 68687150 is about 8287.7711117043. The cubic root of 68687150 is about 409.5357624723.

The spelling of 68687150 in words is "sixty-eight million, six hundred eighty-seven thousand, one hundred fifty".