68015492 has 6 divisors (see below), whose sum is σ = 119027118. Its totient is φ = 34007744.

The previous prime is 68015489. The next prime is 68015501. The reversal of 68015492 is 29451086.

It can be written as a sum of positive squares in only one way, i.e., 66814276 + 1201216 = 8174^2 + 1096^2 .

It is a super-2 number, since 2×68015492² = 9252214304004128, which contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8501933 + ... + 8501940.

It is an arithmetic number, because the mean of its divisors is an integer number (19837853).

Almost surely, 2^68015492 is an apocalyptic number.

It is an amenable number.

68015492 is a deficient number, since it is larger than the sum of its proper divisors (51011626).

68015492 is a wasteful number, since it uses less digits than its factorization.

68015492 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17003877 (or 17003875 counting only the distinct ones).

The product of its (nonzero) digits is 17280, while the sum is 35.

The square root of 68015492 is about 8247.1505382162. The cubic root of 68015492 is about 408.1965044072.

The spelling of 68015492 in words is "sixty-eight million, fifteen thousand, four hundred ninety-two".