385347273697 has 8 divisors (see below), whose sum is σ = 395844817896. Its totient is φ = 374854084992.

The previous prime is 385347273677. The next prime is 385347273709. The reversal of 385347273697 is 796372743583.

It can be written as a sum of positive squares in 4 ways, for example, as 197068517776 + 188278755921 = 443924^2 + 433911^2 .

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-385347273697 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (385347273677) 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, 909118 + ... + 1263799.

It is an arithmetic number, because the mean of its divisors is an integer number (49480602237).

Almost surely, 2^385347273697 is an apocalyptic number.

385347273697 is a gapful number since it is divisible by the number (37) formed by its first and last digit.

It is an amenable number.

385347273697 is a deficient number, since it is larger than the sum of its proper divisors (10497544199).

385347273697 is a wasteful number, since it uses less digits than its factorization.

385347273697 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2177747.

The product of its digits is 160030080, while the sum is 64.

The spelling of 385347273697 in words is "three hundred eighty-five billion, three hundred forty-seven million, two hundred seventy-three thousand, six hundred ninety-seven".