862240749473 has 4 divisors (see below), whose sum is σ = 891973189140. Its totient is φ = 832508309808.

The previous prime is 862240749371. The next prime is 862240749481. The reversal of 862240749473 is 374947042268.

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

It can be written as a sum of positive squares in 2 ways, for example, as 189105828769 + 673134920704 = 434863^2 + 820448^2 .

It is a cyclic number.

It is not a de Polignac number, because 862240749473 - 2⁸ = 862240749217 is a prime.

It is a super-2 number, since 2×862240749473² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (862240749973) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14866219790 + ... + 14866219847.

It is an arithmetic number, because the mean of its divisors is an integer number (222993297285).

Almost surely, 2^862240749473 is an apocalyptic number.

It is an amenable number.

862240749473 is a deficient number, since it is larger than the sum of its proper divisors (29732439667).

862240749473 is a wasteful number, since it uses less digits than its factorization.

862240749473 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29732439666.

The product of its (nonzero) digits is 16257024, while the sum is 56.

The spelling of 862240749473 in words is "eight hundred sixty-two billion, two hundred forty million, seven hundred forty-nine thousand, four hundred seventy-three".