1012770018 has 54 divisors (see below), whose sum is σ = 2380239459. Its totient is φ = 311081472.

The previous prime is 1012769993. The next prime is 1012770037. The reversal of 1012770018 is 8100772101.

It can be written as a sum of positive squares in 5 ways, for example, as 801852489 + 210917529 = 28317^2 + 14523^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=22503.

It is a junction number, because it is equal to n+sod(n) for n = 1012769973 and 1012770000.

It is an unprimeable number.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 1754946 + ... + 1755522.

Almost surely, 2^1012770018 is an apocalyptic number.

1012770018 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 1012770018

1012770018 is an abundant number, since it is smaller than the sum of its proper divisors (1367469441).

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

1012770018 is an equidigital number, since it uses as much as digits as its factorization.

1012770018 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1188 (or 595 counting only the distinct ones).

The product of its (nonzero) digits is 784, while the sum is 27.

The square root of 1012770018 is about 31824.0477940818. The cubic root of 1012770018 is about 1004.2386808665.

The spelling of 1012770018 in words is "one billion, twelve million, seven hundred seventy thousand, eighteen".