8978736292993 has 4 divisors (see below), whose sum is σ = 9062649716400. Its totient is φ = 8894822869588.

The previous prime is 8978736292973. The next prime is 8978736293011. The reversal of 8978736292993 is 3992926378798.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 8978736292993 - 2⁴¹ = 6779713037441 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (8978736292973) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 41956711543 + ... + 41956711756.

It is an arithmetic number, because the mean of its divisors is an integer number (2265662429100).

Almost surely, 2^{8978736292993} is an apocalyptic number.

It is an amenable number.

8978736292993 is a deficient number, since it is larger than the sum of its proper divisors (83913423407).

8978736292993 is a wasteful number, since it uses less digits than its factorization.

8978736292993 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 83913423406.

The product of its digits is 4444263936, while the sum is 82.

It can be divided in two parts, 8978736 and 292993, that added together give a palindrome (9271729).

The spelling of 8978736292993 in words is "eight trillion, nine hundred seventy-eight billion, seven hundred thirty-six million, two hundred ninety-two thousand, nine hundred ninety-three".