78323055856 has 20 divisors (see below), whose sum is σ = 151772936704. Its totient is φ = 39155846400.

The previous prime is 78323055851. The next prime is 78323055869. The reversal of 78323055856 is 65855032387.

It is a happy number.

It is a super-2 number, since 2×78323055856² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (78323055851) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 240240 + ... + 462991.

Almost surely, 2^78323055856 is an apocalyptic number.

It is an amenable number.

78323055856 is a deficient number, since it is larger than the sum of its proper divisors (73449880848).

78323055856 is a wasteful number, since it uses less digits than its factorization.

78323055856 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 710200 (or 710194 counting only the distinct ones).

The product of its (nonzero) digits is 6048000, while the sum is 52.

The spelling of 78323055856 in words is "seventy-eight billion, three hundred twenty-three million, fifty-five thousand, eight hundred fifty-six".