354889689779 has 8 divisors (see below), whose sum is σ = 366423136128. Its totient is φ = 343361580480.

The previous prime is 354889689719. The next prime is 354889689839. The reversal of 354889689779 is 977986988453.

It is an interprime number because it is at equal distance from previous prime (354889689719) and next prime (354889689839).

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-354889689779 is a prime.

It is a super-2 number, since 2×354889689779² (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 = 354889689697 and 354889689706.

It is not an unprimeable number, because it can be changed into a prime (354889689719) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1198892 + ... + 1465305.

It is an arithmetic number, because the mean of its divisors is an integer number (45802892016).

Almost surely, 2^354889689779 is an apocalyptic number.

354889689779 is a deficient number, since it is larger than the sum of its proper divisors (11533446349).

354889689779 is a wasteful number, since it uses less digits than its factorization.

354889689779 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2668525.

The product of its digits is 6584094720, while the sum is 83.

The spelling of 354889689779 in words is "three hundred fifty-four billion, eight hundred eighty-nine million, six hundred eighty-nine thousand, seven hundred seventy-nine".