243047093405 has 16 divisors (see below), whose sum is σ = 292953386880. Its totient is φ = 193574042688.

The previous prime is 243047093371. The next prime is 243047093519. The reversal of 243047093405 is 504390740342.

It is not a de Polignac number, because 243047093405 - 2¹² = 243047089309 is a prime.

It is a super-2 number, since 2×243047093405² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2017859 + ... + 2134911.

It is an arithmetic number, because the mean of its divisors is an integer number (18309586680).

Almost surely, 2^243047093405 is an apocalyptic number.

It is an amenable number.

243047093405 is a deficient number, since it is larger than the sum of its proper divisors (49906293475).

243047093405 is a wasteful number, since it uses less digits than its factorization.

243047093405 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 118900.

The product of its (nonzero) digits is 362880, while the sum is 41.

The spelling of 243047093405 in words is "two hundred forty-three billion, forty-seven million, ninety-three thousand, four hundred five".