78226435896 has 64 divisors (see below), whose sum is σ = 230713927680. Its totient is φ = 21629427840.

The previous prime is 78226435829. The next prime is 78226435909. The reversal of 78226435896 is 69853462287.

It is a super-2 number, since 2×78226435896² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7505011 + ... + 7515426.

It is an arithmetic number, because the mean of its divisors is an integer number (3604905120).

Almost surely, 2^78226435896 is an apocalyptic number.

It is an amenable number.

78226435896 is an abundant number, since it is smaller than the sum of its proper divisors (152487491784).

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

78226435896 is a wasteful number, since it uses less digits than its factorization.

78226435896 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15020484 (or 15020480 counting only the distinct ones).

The product of its digits is 34836480, while the sum is 60.

The spelling of 78226435896 in words is "seventy-eight billion, two hundred twenty-six million, four hundred thirty-five thousand, eight hundred ninety-six".