348138447677 has 4 divisors (see below), whose sum is σ = 348156174396. Its totient is φ = 348120720960.

The previous prime is 348138447673. The next prime is 348138447731. The reversal of 348138447677 is 776744831843.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 88271975236 + 259866472441 = 297106^2 + 509771^2 .

It is a cyclic number.

It is not a de Polignac number, because 348138447677 - 2² = 348138447673 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 (348138447673) 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 3 ways as a sum of consecutive naturals, for example, 8833868 + ... + 8873189.

It is an arithmetic number, because the mean of its divisors is an integer number (87039043599).

Almost surely, 2^348138447677 is an apocalyptic number.

It is an amenable number.

348138447677 is a deficient number, since it is larger than the sum of its proper divisors (17726719).

348138447677 is a wasteful number, since it uses less digits than its factorization.

348138447677 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17726718.

The product of its digits is 75866112, while the sum is 62.

The spelling of 348138447677 in words is "three hundred forty-eight billion, one hundred thirty-eight million, four hundred forty-seven thousand, six hundred seventy-seven".