782474699779 has 2 divisors, whose sum is σ = 782474699780. Its totient is φ = 782474699778.

The previous prime is 782474699711. The next prime is 782474699791. The reversal of 782474699779 is 977996474287.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 782474699779 - 2¹³ = 782474691587 is a prime.

It is a super-2 number, since 2×782474699779² (a number of 25 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 782474699699 and 782474699708.

It is not a weakly prime, because it can be changed into another prime (782474199779) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 391237349889 + 391237349890.

It is an arithmetic number, because the mean of its divisors is an integer number (391237349890).

Almost surely, 2^782474699779 is an apocalyptic number.

782474699779 is a deficient number, since it is larger than the sum of its proper divisors (1).

782474699779 is an equidigital number, since it uses as much as digits as its factorization.

782474699779 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2688505344, while the sum is 79.

The spelling of 782474699779 in words is "seven hundred eighty-two billion, four hundred seventy-four million, six hundred ninety-nine thousand, seven hundred seventy-nine".