78008420263 has 8 divisors (see below), whose sum is σ = 78539908608. Its totient is φ = 77477698584.

The previous prime is 78008420257. The next prime is 78008420279. The reversal of 78008420263 is 36202480087.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 78008420263 - 2¹³ = 78008412071 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (78008720263) 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 7 ways as a sum of consecutive naturals, for example, 13270 + ... + 395212.

It is an arithmetic number, because the mean of its divisors is an integer number (9817488576).

Almost surely, 2^78008420263 is an apocalyptic number.

78008420263 is a deficient number, since it is larger than the sum of its proper divisors (531488345).

78008420263 is a wasteful number, since it uses less digits than its factorization.

78008420263 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 383333.

The product of its (nonzero) digits is 129024, while the sum is 40.

The spelling of 78008420263 in words is "seventy-eight billion, eight million, four hundred twenty thousand, two hundred sixty-three".