3486809289949 has 2 divisors, whose sum is σ = 3486809289950. Its totient is φ = 3486809289948.

The previous prime is 3486809289937. The next prime is 3486809290039. The reversal of 3486809289949 is 9499829086843.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 3482534484025 + 4274805924 = 1866155^2 + 65382^2 .

It is a cyclic number.

It is not a de Polignac number, because 3486809289949 - 2¹¹ = 3486809287901 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3486809289449) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1743404644974 + 1743404644975.

It is an arithmetic number, because the mean of its divisors is an integer number (1743404644975).

Almost surely, 2^{3486809289949} is an apocalyptic number.

It is an amenable number.

3486809289949 is a deficient number, since it is larger than the sum of its proper divisors (1).

3486809289949 is an equidigital number, since it uses as much as digits as its factorization.

3486809289949 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1934917632, while the sum is 79.

The spelling of 3486809289949 in words is "three trillion, four hundred eighty-six billion, eight hundred nine million, two hundred eighty-nine thousand, nine hundred forty-nine".