68516380 has 48 divisors (see below), whose sum is σ = 147129696. Its totient is φ = 26796800.

The previous prime is 68516377. The next prime is 68516407. The reversal of 68516380 is 8361586.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 215982 + ... + 216298.

It is an arithmetic number, because the mean of its divisors is an integer number (3065202).

Almost surely, 2^68516380 is an apocalyptic number.

It is an amenable number.

68516380 is an abundant number, since it is smaller than the sum of its proper divisors (78613316).

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

68516380 is a wasteful number, since it uses less digits than its factorization.

68516380 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 534 (or 532 counting only the distinct ones).

The product of its (nonzero) digits is 34560, while the sum is 37.

The square root of 68516380 is about 8277.4621714629. The cubic root of 68516380 is about 409.1960848616.

It can be divided in two parts, 6851 and 6380, that added together give a palindrome (13231).

The spelling of 68516380 in words is "sixty-eight million, five hundred sixteen thousand, three hundred eighty".