78223033380635 has 64 divisors (see below), whose sum is σ = 111932719395840. Its totient is φ = 51725557255680.

The previous prime is 78223033380629. The next prime is 78223033380703. The reversal of 78223033380635 is 53608333032287.

It is a happy number.

It is not a de Polignac number, because 78223033380635 - 2⁴⁴ = 60630847336219 is a prime.

It is a super-2 number, since 2×78223033380635² (a number of 29 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 694709921 + ... + 694822509.

It is an arithmetic number, because the mean of its divisors is an integer number (1748948740560).

Almost surely, 2^{78223033380635} is an apocalyptic number.

78223033380635 is a deficient number, since it is larger than the sum of its proper divisors (33709686015205).

78223033380635 is a wasteful number, since it uses less digits than its factorization.

78223033380635 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 127188.

The product of its (nonzero) digits is 13063680, while the sum is 53.

The spelling of 78223033380635 in words is "seventy-eight trillion, two hundred twenty-three billion, thirty-three million, three hundred eighty thousand, six hundred thirty-five".