78794926503 has 16 divisors (see below), whose sum is σ = 105490488576. Its totient is φ = 52314776640.

The previous prime is 78794926501. The next prime is 78794926523. The reversal of 78794926503 is 30562949787.

It is not a de Polignac number, because 78794926503 - 2¹ = 78794926501 is a prime.

It is a super-2 number, since 2×78794926503² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (78794926501) 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, 3069843 + ... + 3095403.

It is an arithmetic number, because the mean of its divisors is an integer number (6593155536).

Almost surely, 2^78794926503 is an apocalyptic number.

78794926503 is a deficient number, since it is larger than the sum of its proper divisors (26695562073).

78794926503 is a wasteful number, since it uses less digits than its factorization.

78794926503 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29734.

The product of its (nonzero) digits is 22861440, while the sum is 60.

The spelling of 78794926503 in words is "seventy-eight billion, seven hundred ninety-four million, nine hundred twenty-six thousand, five hundred three".