40280534217 has 36 divisors (see below), whose sum is σ = 73089394560. Its totient is φ = 20924948880.

The previous prime is 40280534209. The next prime is 40280534233. The reversal of 40280534217 is 71243508204.

It is a happy number.

40280534217 is a `hidden beast` number, since 40 + 2 + 80 + 534 + 2 + 1 + 7 = 666.

It is not a de Polignac number, because 40280534217 - 2³ = 40280534209 is a prime.

It is not an unprimeable number, because it can be changed into a prime (40280538217) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 2634417 + ... + 2649662.

It is an arithmetic number, because the mean of its divisors is an integer number (2030260960).

Almost surely, 2^40280534217 is an apocalyptic number.

It is an amenable number.

40280534217 is a deficient number, since it is larger than the sum of its proper divisors (32808860343).

40280534217 is a wasteful number, since it uses less digits than its factorization.

40280534217 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5284114 (or 5284100 counting only the distinct ones).

The product of its (nonzero) digits is 53760, while the sum is 36.

The spelling of 40280534217 in words is "forty billion, two hundred eighty million, five hundred thirty-four thousand, two hundred seventeen".