68700128 has 48 divisors (see below), whose sum is σ = 163677024. Its totient is φ = 27709440.

The previous prime is 68700119. The next prime is 68700161. The reversal of 68700128 is 82100786.

It is a Harshad number since it is a multiple of its sum of digits (32).

It is a junction number, because it is equal to n+sod(n) for n = 68700094 and 68700103.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5213 + ... + 12828.

It is an arithmetic number, because the mean of its divisors is an integer number (3409938).

Almost surely, 2^68700128 is an apocalyptic number.

68700128 is a gapful number since it is divisible by the number (68) formed by its first and last digit.

It is an amenable number.

68700128 is an abundant number, since it is smaller than the sum of its proper divisors (94976896).

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

68700128 is a wasteful number, since it uses less digits than its factorization.

68700128 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18075 (or 18067 counting only the distinct ones).

The product of its (nonzero) digits is 5376, while the sum is 32.

The square root of 68700128 is about 8288.5540355360. The cubic root of 68700128 is about 409.5615539069.

The spelling of 68700128 in words is "sixty-eight million, seven hundred thousand, one hundred twenty-eight".