1640276857822 has 8 divisors (see below), whose sum is σ = 2589910828200. Its totient is φ = 776973248424.

The previous prime is 1640276857819. The next prime is 1640276857831. The reversal of 1640276857822 is 2287586720461.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 21582590197 + ... + 21582590272.

It is an arithmetic number, because the mean of its divisors is an integer number (323738853525).

Almost surely, 2^{1640276857822} is an apocalyptic number.

1640276857822 is a deficient number, since it is larger than the sum of its proper divisors (949633970378).

1640276857822 is a wasteful number, since it uses less digits than its factorization.

1640276857822 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43165180490.

The product of its (nonzero) digits is 18063360, while the sum is 58.

The spelling of 1640276857822 in words is "one trillion, six hundred forty billion, two hundred seventy-six million, eight hundred fifty-seven thousand, eight hundred twenty-two".