78105026 has 16 divisors (see below), whose sum is σ = 119746080. Its totient is φ = 38196480.

The previous prime is 78105011. The next prime is 78105031. The reversal of 78105026 is 62050187.

It is a super-2 number, since 2×78105026² = 12200790172921352, which contains 22 as substring.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 78105026.

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, 23330 + ... + 26466.

It is an arithmetic number, because the mean of its divisors is an integer number (7484130).

Almost surely, 2^78105026 is an apocalyptic number.

78105026 is a deficient number, since it is larger than the sum of its proper divisors (41641054).

78105026 is a wasteful number, since it uses less digits than its factorization.

78105026 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3409.

The product of its (nonzero) digits is 3360, while the sum is 29.

The square root of 78105026 is about 8837.7047925352. The cubic root of 78105026 is about 427.4575515004.

The spelling of 78105026 in words is "seventy-eight million, one hundred five thousand, twenty-six".