840263759023 has 4 divisors (see below), whose sum is σ = 904899432808. Its totient is φ = 775628085240.

The previous prime is 840263758987. The next prime is 840263759033. The reversal of 840263759023 is 320957362048.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 840263759023 - 2¹³ = 840263750831 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (840263759033) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 32317836873 + ... + 32317836898.

It is an arithmetic number, because the mean of its divisors is an integer number (226224858202).

Almost surely, 2^840263759023 is an apocalyptic number.

840263759023 is a deficient number, since it is larger than the sum of its proper divisors (64635673785).

840263759023 is a wasteful number, since it uses less digits than its factorization.

840263759023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 64635673784.

The product of its (nonzero) digits is 2177280, while the sum is 49.

The spelling of 840263759023 in words is "eight hundred forty billion, two hundred sixty-three million, seven hundred fifty-nine thousand, twenty-three".