78141768 has 32 divisors (see below), whose sum is σ = 195989760. Its totient is φ = 25962560.

The previous prime is 78141751. The next prime is 78141803. The reversal of 78141768 is 86714187.

It is a happy number.

It is a super-2 number, since 2×78141768² = 12212271812331648, which contains 22 as substring.

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, 2473 + ... + 12743.

It is an arithmetic number, because the mean of its divisors is an integer number (6124680).

Almost surely, 2^78141768 is an apocalyptic number.

It is an amenable number.

78141768 is an abundant number, since it is smaller than the sum of its proper divisors (117847992).

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

78141768 is a wasteful number, since it uses less digits than its factorization.

78141768 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10597 (or 10593 counting only the distinct ones).

The product of its digits is 75264, while the sum is 42.

The square root of 78141768 is about 8839.7832552614. The cubic root of 78141768 is about 427.5245688831.

The spelling of 78141768 in words is "seventy-eight million, one hundred forty-one thousand, seven hundred sixty-eight".