1019986064 has 20 divisors (see below), whose sum is σ = 2001240960. Its totient is φ = 503536800.

The previous prime is 1019986061. The next prime is 1019986081. The reversal of 1019986064 is 4606899101.

It is not an unprimeable number, because it can be changed into a prime (1019986061) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 402212 + ... + 404739.

It is an arithmetic number, because the mean of its divisors is an integer number (100062048).

Almost surely, 2^1019986064 is an apocalyptic number.

It is an amenable number.

1019986064 is a deficient number, since it is larger than the sum of its proper divisors (981254896).

1019986064 is an equidigital number, since it uses as much as digits as its factorization.

1019986064 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 807038 (or 807032 counting only the distinct ones).

The product of its (nonzero) digits is 93312, while the sum is 44.

The square root of 1019986064 is about 31937.2206680544. The cubic root of 1019986064 is about 1006.6181251294.

The spelling of 1019986064 in words is "one billion, nineteen million, nine hundred eighty-six thousand, sixty-four".