1018775064 has 64 divisors (see below), whose sum is σ = 2667168000. Its totient is φ = 323666816.

The previous prime is 1018775053. The next prime is 1018775083. The reversal of 1018775064 is 4605778101.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 158587 + ... + 164885.

It is an arithmetic number, because the mean of its divisors is an integer number (41674500).

Almost surely, 2^1018775064 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1018775064, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1333584000).

1018775064 is an abundant number, since it is smaller than the sum of its proper divisors (1648392936).

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

1018775064 is a wasteful number, since it uses less digits than its factorization.

1018775064 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6624 (or 6620 counting only the distinct ones).

The product of its (nonzero) digits is 47040, while the sum is 39.

The square root of 1018775064 is about 31918.2559673927. The cubic root of 1018775064 is about 1006.2195911544.

The spelling of 1018775064 in words is "one billion, eighteen million, seven hundred seventy-five thousand, sixty-four".