78655622622 has 16 divisors (see below), whose sum is σ = 157437210000. Its totient is φ = 26197546752.

The previous prime is 78655622611. The next prime is 78655622623. The reversal of 78655622622 is 22622655687.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (78655622623) by changing a digit.

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 in 7 ways as a sum of consecutive naturals, for example, 5240413 + ... + 5255400.

It is an arithmetic number, because the mean of its divisors is an integer number (9839825625).

Almost surely, 2^78655622622 is an apocalyptic number.

78655622622 is an abundant number, since it is smaller than the sum of its proper divisors (78781587378).

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

78655622622 is a wasteful number, since it uses less digits than its factorization.

78655622622 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10497067.

The product of its digits is 4838400, while the sum is 51.

The spelling of 78655622622 in words is "seventy-eight billion, six hundred fifty-five million, six hundred twenty-two thousand, six hundred twenty-two".