845234211731 has 16 divisors (see below), whose sum is σ = 1040311953408. Its totient is φ = 668741508000.

The previous prime is 845234211667. The next prime is 845234211743. The reversal of 845234211731 is 137112432548.

845234211731 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 845234211731 - 2⁶ = 845234211667 is a prime.

It is a super-2 number, since 2×845234211731² (a number of 25 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (845234211781) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5584706 + ... + 5734056.

It is an arithmetic number, because the mean of its divisors is an integer number (65019497088).

Almost surely, 2^845234211731 is an apocalyptic number.

845234211731 is a deficient number, since it is larger than the sum of its proper divisors (195077741677).

845234211731 is a wasteful number, since it uses less digits than its factorization.

845234211731 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 211562.

The product of its digits is 161280, while the sum is 41.

The spelling of 845234211731 in words is "eight hundred forty-five billion, two hundred thirty-four million, two hundred eleven thousand, seven hundred thirty-one".