840276769744 has 20 divisors (see below), whose sum is σ = 1628397124996. Its totient is φ = 420045253632.

The previous prime is 840276769733. The next prime is 840276769747. The reversal of 840276769744 is 447967672048.

It can be written as a sum of positive squares in 2 ways, for example, as 8372250000 + 831904519744 = 91500^2 + 912088^2 .

It is a super-2 number, since 2×840276769744² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (840276769747) 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, 5746239 + ... + 5890654.

Almost surely, 2^840276769744 is an apocalyptic number.

It is an amenable number.

840276769744 is a deficient number, since it is larger than the sum of its proper divisors (788120355252).

840276769744 is a wasteful number, since it uses less digits than its factorization.

840276769744 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11641414 (or 11641408 counting only the distinct ones).

The product of its (nonzero) digits is 113799168, while the sum is 64.

The spelling of 840276769744 in words is "eight hundred forty billion, two hundred seventy-six million, seven hundred sixty-nine thousand, seven hundred forty-four".