68361510 has 64 divisors (see below), whose sum is σ = 193572864. Its totient is φ = 15120000.

The previous prime is 68361509. The next prime is 68361521. The reversal of 68361510 is 1516386.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1260 + ... + 11760.

It is an arithmetic number, because the mean of its divisors is an integer number (3024576).

Almost surely, 2^68361510 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 68361510, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (96786432).

68361510 is an abundant number, since it is smaller than the sum of its proper divisors (125211354).

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

68361510 is a wasteful number, since it uses less digits than its factorization.

68361510 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10549.

The product of its (nonzero) digits is 4320, while the sum is 30.

The square root of 68361510 is about 8268.1019587327. The cubic root of 68361510 is about 408.8875454769.

Adding to 68361510 its reverse (1516386), we get a palindrome (69877896).

The spelling of 68361510 in words is "sixty-eight million, three hundred sixty-one thousand, five hundred ten".