840640258153311 has 32 divisors (see below), whose sum is σ = 1397664695697408. Its totient is φ = 436622258598240.

The previous prime is 840640258153301. The next prime is 840640258153387. The reversal of 840640258153311 is 113351852046048.

It is not a de Polignac number, because 840640258153311 - 2¹¹ = 840640258151263 is a prime.

It is a super-2 number, since 2×840640258153311² (a number of 31 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (840640258153301) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 306880971 + ... + 309608156.

It is an arithmetic number, because the mean of its divisors is an integer number (43677021740544).

Almost surely, 2^{840640258153311} is an apocalyptic number.

840640258153311 is a deficient number, since it is larger than the sum of its proper divisors (557024437544097).

840640258153311 is a wasteful number, since it uses less digits than its factorization.

840640258153311 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 616495051.

The product of its (nonzero) digits is 2764800, while the sum is 51.

The spelling of 840640258153311 in words is "eight hundred forty trillion, six hundred forty billion, two hundred fifty-eight million, one hundred fifty-three thousand, three hundred eleven".