7794794778631 has 8 divisors (see below), whose sum is σ = 8991592375680. Its totient is φ = 6618811053048.

The previous prime is 7794794778613. The next prime is 7794794778637. The reversal of 7794794778631 is 1368774974977.

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 7794794778631 - 2⁹ = 7794794778119 is a prime.

It is a super-2 number, since 2×7794794778631² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7794794778637) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5203467061 + ... + 5203468558.

It is an arithmetic number, because the mean of its divisors is an integer number (1123949046960).

Almost surely, 2^{7794794778631} is an apocalyptic number.

7794794778631 is a deficient number, since it is larger than the sum of its proper divisors (1196797597049).

7794794778631 is a wasteful number, since it uses less digits than its factorization.

7794794778631 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10406935733.

The product of its digits is 3136589568, while the sum is 79.

The spelling of 7794794778631 in words is "seven trillion, seven hundred ninety-four billion, seven hundred ninety-four million, seven hundred seventy-eight thousand, six hundred thirty-one".