812480505 has 8 divisors (see below), whose sum is σ = 1299968832. Its totient is φ = 433322928.

The previous prime is 812480467. The next prime is 812480531. The reversal of 812480505 is 505084218.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 812480505 - 2¹² = 812476409 is a prime.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 27082669 + ... + 27082698.

It is an arithmetic number, because the mean of its divisors is an integer number (162496104).

Almost surely, 2^812480505 is an apocalyptic number.

It is an amenable number.

812480505 is a deficient number, since it is larger than the sum of its proper divisors (487488327).

812480505 is a wasteful number, since it uses less digits than its factorization.

812480505 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 54165375.

The product of its (nonzero) digits is 12800, while the sum is 33.

The square root of 812480505 is about 28504.0436605054. The cubic root of 812480505 is about 933.1203260364.

The spelling of 812480505 in words is "eight hundred twelve million, four hundred eighty thousand, five hundred five".