78081602 has 16 divisors (see below), whose sum is σ = 123466560. Its totient is φ = 36932112.

The previous prime is 78081587. The next prime is 78081613. The reversal of 78081602 is 20618087.

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, 39428 + ... + 41360.

It is an arithmetic number, because the mean of its divisors is an integer number (7716660).

Almost surely, 2^78081602 is an apocalyptic number.

78081602 is a deficient number, since it is larger than the sum of its proper divisors (45384958).

78081602 is a wasteful number, since it uses less digits than its factorization.

78081602 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3017.

The product of its (nonzero) digits is 5376, while the sum is 32.

The square root of 78081602 is about 8836.3794622006. The cubic root of 78081602 is about 427.4148151690.

Adding to 78081602 its reverse (20618087), we get a palindrome (98699689).

The spelling of 78081602 in words is "seventy-eight million, eighty-one thousand, six hundred two".