40347662047209 has 24 divisors (see below), whose sum is σ = 63578386845792. Its totient is φ = 24453031317120.

The previous prime is 40347662047171. The next prime is 40347662047243. The reversal of 40347662047209 is 90274026674304.

40347662047209 is a `hidden beast` number, since 4 + 0 + 3 + 4 + 7 + 6 + 620 + 4 + 7 + 2 + 0 + 9 = 666.

It is not a de Polignac number, because 40347662047209 - 2¹⁵ = 40347662014441 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (40347662047009) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 30181594 + ... + 31490060.

It is an arithmetic number, because the mean of its divisors is an integer number (2649099451908).

Almost surely, 2^{40347662047209} is an apocalyptic number.

It is an amenable number.

40347662047209 is a deficient number, since it is larger than the sum of its proper divisors (23230724798583).

40347662047209 is a wasteful number, since it uses less digits than its factorization.

40347662047209 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1619957 (or 1619954 counting only the distinct ones).

The product of its (nonzero) digits is 12192768, while the sum is 54.

The spelling of 40347662047209 in words is "forty trillion, three hundred forty-seven billion, six hundred sixty-two million, forty-seven thousand, two hundred nine".