340787017257 has 8 divisors (see below), whose sum is σ = 478297568160. Its totient is φ = 215233905600.

The previous prime is 340787017237. The next prime is 340787017267. The reversal of 340787017257 is 752710787043.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 340787017257 - 2³² = 336492049961 is a prime.

It is a super-2 number, since 2×340787017257² (a number of 24 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (340787017237) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2989359744 + ... + 2989359857.

It is an arithmetic number, because the mean of its divisors is an integer number (59787196020).

Almost surely, 2^340787017257 is an apocalyptic number.

It is an amenable number.

340787017257 is a deficient number, since it is larger than the sum of its proper divisors (137510550903).

340787017257 is a wasteful number, since it uses less digits than its factorization.

340787017257 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5978719623.

The product of its (nonzero) digits is 2304960, while the sum is 51.

The spelling of 340787017257 in words is "three hundred forty billion, seven hundred eighty-seven million, seventeen thousand, two hundred fifty-seven".