616869811479 has 8 divisors (see below), whose sum is σ = 844722624880. Its totient is φ = 400131769536.

The previous prime is 616869811463. The next prime is 616869811511. The reversal of 616869811479 is 974118968616.

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

It is not a de Polignac number, because 616869811479 - 2⁴ = 616869811463 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 (616869811979) 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, 2778692734 + ... + 2778692955.

It is an arithmetic number, because the mean of its divisors is an integer number (105590328110).

Almost surely, 2^616869811479 is an apocalyptic number.

616869811479 is a deficient number, since it is larger than the sum of its proper divisors (227852813401).

616869811479 is a wasteful number, since it uses less digits than its factorization.

616869811479 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5557385729.

The product of its digits is 31352832, while the sum is 66.

The spelling of 616869811479 in words is "six hundred sixteen billion, eight hundred sixty-nine million, eight hundred eleven thousand, four hundred seventy-nine".