68134780 has 24 divisors (see below), whose sum is σ = 163523808. Its totient is φ = 23360448.

The previous prime is 68134777. The next prime is 68134811. The reversal of 68134780 is 8743186.

It is a happy number.

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, 243199 + ... + 243478.

It is an arithmetic number, because the mean of its divisors is an integer number (6813492).

Almost surely, 2^68134780 is an apocalyptic number.

It is an amenable number.

68134780 is an abundant number, since it is smaller than the sum of its proper divisors (95389028).

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

68134780 is a wasteful number, since it uses less digits than its factorization.

68134780 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 486693 (or 486691 counting only the distinct ones).

The product of its (nonzero) digits is 32256, while the sum is 37.

The square root of 68134780 is about 8254.3794436650. The cubic root of 68134780 is about 408.4350015711.

The spelling of 68134780 in words is "sixty-eight million, one hundred thirty-four thousand, seven hundred eighty".