812751017650 has 96 divisors (see below), whose sum is σ = 1869477220800. Its totient is φ = 258452985600.

The previous prime is 812751017629. The next prime is 812751017657. The reversal of 812751017650 is 56710157218.

It is a super-2 number, since 2×812751017650² (a number of 25 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 812751017597 and 812751017606.

It is not an unprimeable number, because it can be changed into a prime (812751017657) 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, 2855505 + ... + 3127204.

It is an arithmetic number, because the mean of its divisors is an integer number (19473721050).

Almost surely, 2^812751017650 is an apocalyptic number.

812751017650 is an abundant number, since it is smaller than the sum of its proper divisors (1056726203150).

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

812751017650 is a wasteful number, since it uses less digits than its factorization.

812751017650 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5982764 (or 5982759 counting only the distinct ones).

The product of its (nonzero) digits is 117600, while the sum is 43.

The spelling of 812751017650 in words is "eight hundred twelve billion, seven hundred fifty-one million, seventeen thousand, six hundred fifty".