340404271087 has 2 divisors, whose sum is σ = 340404271088. Its totient is φ = 340404271086.

The previous prime is 340404270977. The next prime is 340404271127. The reversal of 340404271087 is 780172404043.

It is an a-pointer prime, because the next prime (340404271127) can be obtained adding 340404271087 to its sum of digits (40).

It is a strong prime.

It is an emirp because it is prime and its reverse (780172404043) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 340404271087 - 2²⁷ = 340270053359 is a prime.

It is a super-3 number, since 3×340404271087³ (a number of 36 digits) contains 333 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (340404211087) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 170202135543 + 170202135544.

It is an arithmetic number, because the mean of its divisors is an integer number (170202135544).

Almost surely, 2^340404271087 is an apocalyptic number.

340404271087 is a deficient number, since it is larger than the sum of its proper divisors (1).

340404271087 is an equidigital number, since it uses as much as digits as its factorization.

340404271087 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 150528, while the sum is 40.

The spelling of 340404271087 in words is "three hundred forty billion, four hundred four million, two hundred seventy-one thousand, eighty-seven".