68782620 has 48 divisors (see below), whose sum is σ = 196697088. Its totient is φ = 17951040.

The previous prime is 68782607. The next prime is 68782639. The reversal of 68782620 is 2628786.

It is a plaindrome in base 13.

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, 9376 + ... + 15015.

It is an arithmetic number, because the mean of its divisors is an integer number (4097856).

Almost surely, 2^68782620 is an apocalyptic number.

68782620 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

68782620 is an abundant number, since it is smaller than the sum of its proper divisors (127914468).

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

68782620 is a wasteful number, since it uses less digits than its factorization.

68782620 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24450 (or 24448 counting only the distinct ones).

The product of its (nonzero) digits is 64512, while the sum is 39.

The square root of 68782620 is about 8293.5288026268. The cubic root of 68782620 is about 409.7254159888.

The spelling of 68782620 in words is "sixty-eight million, seven hundred eighty-two thousand, six hundred twenty".