340282129887 has 18 divisors (see below), whose sum is σ = 571766572728. Its totient is φ = 194446931112.

The previous prime is 340282129883. The next prime is 340282129933. The reversal of 340282129887 is 788921282043.

340282129887 is a `hidden beast` number, since 340 + 2 + 8 + 2 + 1 + 298 + 8 + 7 = 666.

It is not a de Polignac number, because 340282129887 - 2² = 340282129883 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (340282129883) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 385806963 + ... + 385807844.

It is an arithmetic number, because the mean of its divisors is an integer number (31764809596).

Almost surely, 2^340282129887 is an apocalyptic number.

340282129887 is a deficient number, since it is larger than the sum of its proper divisors (231484442841).

340282129887 is a wasteful number, since it uses less digits than its factorization.

340282129887 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 771614827 (or 771614817 counting only the distinct ones).

The product of its (nonzero) digits is 3096576, while the sum is 54.

The spelling of 340282129887 in words is "three hundred forty billion, two hundred eighty-two million, one hundred twenty-nine thousand, eight hundred eighty-seven".