78965126 has 4 divisors (see below), whose sum is σ = 118447692. Its totient is φ = 39482562.

The previous prime is 78965099. The next prime is 78965129. The reversal of 78965126 is 62156987.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 62156987 = 61 ⋅1018967.

It is a super-2 number, since 2×78965126² = 12470982248391752, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (78965129) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19741280 + ... + 19741283.

It is an arithmetic number, because the mean of its divisors is an integer number (29611923).

Almost surely, 2^78965126 is an apocalyptic number.

78965126 is a deficient number, since it is larger than the sum of its proper divisors (39482566).

78965126 is a wasteful number, since it uses less digits than its factorization.

78965126 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39482565.

The product of its digits is 181440, while the sum is 44.

The square root of 78965126 is about 8886.2323849875. The cubic root of 78965126 is about 429.0208946885.

The spelling of 78965126 in words is "seventy-eight million, nine hundred sixty-five thousand, one hundred twenty-six".