78264410422 has 16 divisors (see below), whose sum is σ = 129508016400. Its totient is φ = 35175015040.

The previous prime is 78264410363. The next prime is 78264410459. The reversal of 78264410422 is 22401446287.

It is a super-2 number, since 2×78264410422² (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 7 ways as a sum of consecutive naturals, for example, 19983847 + ... + 19987762.

It is an arithmetic number, because the mean of its divisors is an integer number (8094251025).

Almost surely, 2^78264410422 is an apocalyptic number.

78264410422 is a deficient number, since it is larger than the sum of its proper divisors (51243605978).

78264410422 is a wasteful number, since it uses less digits than its factorization.

78264410422 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39971711.

The product of its (nonzero) digits is 172032, while the sum is 40.

The spelling of 78264410422 in words is "seventy-eight billion, two hundred sixty-four million, four hundred ten thousand, four hundred twenty-two".