343996677777 has 32 divisors (see below), whose sum is σ = 474830540800. Its totient is φ = 221386519872.

The previous prime is 343996677769. The next prime is 343996677799. The reversal of 343996677777 is 777776699343.

It is not a de Polignac number, because 343996677777 - 2³ = 343996677769 is a prime.

It is a super-2 number, since 2×343996677777² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 343996677699 and 343996677708.

It is not an unprimeable number, because it can be changed into a prime (343996677737) 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 31 ways as a sum of consecutive naturals, for example, 3955599 + ... + 4041627.

It is an arithmetic number, because the mean of its divisors is an integer number (14838454400).

Almost surely, 2^343996677777 is an apocalyptic number.

It is an amenable number.

343996677777 is a deficient number, since it is larger than the sum of its proper divisors (130833863023).

343996677777 is a wasteful number, since it uses less digits than its factorization.

343996677777 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 86437.

The product of its digits is 1764331632, while the sum is 75.

It can be divided in two parts, 34399 and 6677777, that added together give a palindrome (6712176).

The spelling of 343996677777 in words is "three hundred forty-three billion, nine hundred ninety-six million, six hundred seventy-seven thousand, seven hundred seventy-seven".