806512944531 has 48 divisors (see below), whose sum is σ = 1285043880960. Its totient is φ = 440718875520.

The previous prime is 806512944469. The next prime is 806512944593. The reversal of 806512944531 is 135449215608.

It is an interprime number because it is at equal distance from previous prime (806512944469) and next prime (806512944593).

It is not a de Polignac number, because 806512944531 - 2¹¹ = 806512942483 is a prime.

It is a super-2 number, since 2×806512944531² (a number of 25 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (806512940531) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 70303126 + ... + 70314596.

It is an arithmetic number, because the mean of its divisors is an integer number (26771747520).

Almost surely, 2^806512944531 is an apocalyptic number.

806512944531 is a deficient number, since it is larger than the sum of its proper divisors (478530936429).

806512944531 is a wasteful number, since it uses less digits than its factorization.

806512944531 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17856 (or 17833 counting only the distinct ones).

The product of its (nonzero) digits is 1036800, while the sum is 48.

The spelling of 806512944531 in words is "eight hundred six billion, five hundred twelve million, nine hundred forty-four thousand, five hundred thirty-one".