812008465770 has 16 divisors (see below), whose sum is σ = 1948820317920. Its totient is φ = 216535590864.

The previous prime is 812008465753. The next prime is 812008465777. The reversal of 812008465770 is 77564800218.

It is not an unprimeable number, because it can be changed into a prime (812008465777) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13533474400 + ... + 13533474459.

It is an arithmetic number, because the mean of its divisors is an integer number (121801269870).

Almost surely, 2^812008465770 is an apocalyptic number.

812008465770 is an abundant number, since it is smaller than the sum of its proper divisors (1136811852150).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

812008465770 is a wasteful number, since it uses less digits than its factorization.

812008465770 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27066948869.

The product of its (nonzero) digits is 752640, while the sum is 48.

The spelling of 812008465770 in words is "eight hundred twelve billion, eight million, four hundred sixty-five thousand, seven hundred seventy".