78031906285 has 16 divisors (see below), whose sum is σ = 95826012480. Its totient is φ = 60967347840.

The previous prime is 78031906283. The next prime is 78031906291. The reversal of 78031906285 is 58260913087.

It is not a de Polignac number, because 78031906285 - 2¹ = 78031906283 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (78031906283) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3775630 + ... + 3796240.

It is an arithmetic number, because the mean of its divisors is an integer number (5989125780).

Almost surely, 2^78031906285 is an apocalyptic number.

It is an amenable number.

78031906285 is a deficient number, since it is larger than the sum of its proper divisors (17794106195).

78031906285 is a wasteful number, since it uses less digits than its factorization.

78031906285 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38268.

The product of its (nonzero) digits is 725760, while the sum is 49.

The spelling of 78031906285 in words is "seventy-eight billion, thirty-one million, nine hundred six thousand, two hundred eighty-five".