68508764 has 6 divisors (see below), whose sum is σ = 119890344. Its totient is φ = 34254380.

The previous prime is 68508763. The next prime is 68508767. The reversal of 68508764 is 46780586.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68508763) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8563592 + ... + 8563599.

It is an arithmetic number, because the mean of its divisors is an integer number (19981724).

Almost surely, 2^68508764 is an apocalyptic number.

It is an amenable number.

68508764 is a deficient number, since it is larger than the sum of its proper divisors (51381580).

68508764 is a wasteful number, since it uses less digits than its factorization.

68508764 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17127195 (or 17127193 counting only the distinct ones).

The product of its (nonzero) digits is 322560, while the sum is 44.

The square root of 68508764 is about 8277.0021142923. The cubic root of 68508764 is about 409.1809227799.

The spelling of 68508764 in words is "sixty-eight million, five hundred eight thousand, seven hundred sixty-four".