78935642603 has 8 divisors (see below), whose sum is σ = 82392979200. Its totient is φ = 75480418728.

The previous prime is 78935642593. The next prime is 78935642609. The reversal of 78935642603 is 30624653987.

It is a happy number.

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

It is not a de Polignac number, because 78935642603 - 2⁸ = 78935642347 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (78935642609) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 451583 + ... + 601496.

It is an arithmetic number, because the mean of its divisors is an integer number (10299122400).

Almost surely, 2^78935642603 is an apocalyptic number.

78935642603 is a deficient number, since it is larger than the sum of its proper divisors (3457336597).

78935642603 is a wasteful number, since it uses less digits than its factorization.

78935642603 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1056361.

The product of its (nonzero) digits is 6531840, while the sum is 53.

The spelling of 78935642603 in words is "seventy-eight billion, nine hundred thirty-five million, six hundred forty-two thousand, six hundred three".