78756963022 has 4 divisors (see below), whose sum is σ = 118135444536. Its totient is φ = 39378481510.

The previous prime is 78756963007. The next prime is 78756963031. The reversal of 78756963022 is 22036965787.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 22036965787 = 7703 ⋅2860829.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19689240754 + ... + 19689240757.

It is an arithmetic number, because the mean of its divisors is an integer number (29533861134).

Almost surely, 2^78756963022 is an apocalyptic number.

78756963022 is a deficient number, since it is larger than the sum of its proper divisors (39378481514).

78756963022 is a wasteful number, since it uses less digits than its factorization.

78756963022 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39378481513.

The product of its (nonzero) digits is 7620480, while the sum is 55.

The spelling of 78756963022 in words is "seventy-eight billion, seven hundred fifty-six million, nine hundred sixty-three thousand, twenty-two".