78255760036 has 24 divisors (see below), whose sum is σ = 146239914240. Its totient is φ = 36559975200.

The previous prime is 78255759991. The next prime is 78255760057. The reversal of 78255760036 is 63006755287.

It is a super-2 number, since 2×78255760036² (a number of 23 digits) contains 22 as substring.

It is an unprimeable number.

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 in 7 ways as a sum of consecutive naturals, for example, 10877350 + ... + 10884541.

It is an arithmetic number, because the mean of its divisors is an integer number (6093329760).

Almost surely, 2^78255760036 is an apocalyptic number.

It is an amenable number.

78255760036 is a deficient number, since it is larger than the sum of its proper divisors (67984154204).

78255760036 is a wasteful number, since it uses less digits than its factorization.

78255760036 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21761955 (or 21761953 counting only the distinct ones).

The product of its (nonzero) digits is 2116800, while the sum is 49.

The spelling of 78255760036 in words is "seventy-eight billion, two hundred fifty-five million, seven hundred sixty thousand, thirty-six".